->''"You have no idea what you're doing, do you? You're just having fun with your hands..."''
-->-- '''Brock Samson:''' to Hank Venture, ''WesternAnimation/TheVentureBrothers''

Any situation where characters communicate with gestures and motions, usually of the hands, as opposed to using voices. This is often done specifically to avoid speaking, either because somebody present is unable to hear or comprehend a given language, because background noise drowns out any attempt at speech, or because the characters are sneaking and cannot make noise. American Sign Language (and those Sign Languages that are not American) is perhaps the perfect example, allowing deaf individuals to communicate with one another through the use of sight rather than hearing.

HandSignals are prevalent in reality as well as fiction. Whenever you indicate something by pointing at it, you're using a [[HandSignals Hand Signal]]. Armed forces use them all the time, for convenience or stealth. Here, try it yourself: when someone approaches you, hold your hand out to them, palm-out, for "Stop." You didn't actually ''say'' "Stop," but the other person saw your gesture and probably knew its meaning intuitively. The "Cut-Off" signal, made by either pointing two fingers at your throat and waving back and forth or by drawing an extended index finger across your jugular vein, is also an example of a gesture with a universally recognized (not to say slightly disturbing) meaning.

This trope is frequently played for laughs, usually through LampshadeHanging. Instances include a character [[NonverbalMiscommunication misunderstanding a signal]], thinking a character is gesturing meaninglessly when they are attempting to frantically make themselves understood, and the gratuitous use of hand signals when they aren't required.

MimingTheCues is a subtrope where one character attempts to surreptitiously coach another using improvised hand signals.

This trope is not BodyLanguage, and does not include habitual gestures like poses and tics. Also has nothing to do with TalkingWithSigns, which is about writing on wooden signs. A sufficiently developed set of Hand Signals may evolve into TalkingThroughTechnique or an actual SignedLanguage.

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!!Examples:

[[foldercontrol]]

[[folder:Anime and Manga]]
* ''LightNovel/HaruhiSuzumiya''. In the first season's BaseballEpisode, the title character uses overly complicated hand signals to give instructions to Kyon and Mikuru. Problem is, she didnt bother to tell her teammates what the signs meant, so Kyon snarks about her trying to cast a spell to reduce the opposing pitcher's stats.
* The five main ninja villages in ''Manga/{{Naruto}}'' each have their own version of military Hand Signals, though some overlap is obvious and visible.
* In a scene in ''Manhwa/{{Yureka}}'', a CloudCuckoolander and a [[StraightMan girl wondering about both their sanity]] hold a conversation from their respective windows on two opposite sides of a courtyard entirely in sweeping motions, conveniently translated for the reader.
* ''GhostInTheShellStandAloneComplex''
** ''1st Gig'' episode "In the Forest of Pupae – PORTRAITZ". The Major and Batou use this when they infiltrate a youth reform facility for fear of having their comms intercepted/destroyed/hacked after losing contact with Togusa.
** ''2nd GIG'' episode #4 "Natural Enemy". During a military live fire exercise, one of the soldiers uses hand signals to control the movement of troops infiltrating a building.
*** This is foreshadowing to the show finale where a group of antagonistic elite soldiers communicate with hand signals, and only use thermoptic camouflage while moving from cover to cover, since all electronic communications in the region are being jammed, and they know that slightest miscommunication could spell disaster while dealing with Section 9.
* In ''{{Eyeshield 21}}'', Mamori and Hiruma devise a system of hand signals to use during games. Hiruma, smart-ass that he is, demonstrates by spelling out the message "The team manager secretly ate all [[TrademarkFavoriteFood the cream puffs]]."
* ''{{Manga/Upotte}}''. During the jungle mock battle, T91 and Aug demonstrate correct usage of hand signals to coordinate their attack.
* {{Toriko}}'s fellow Gourmet Hunter Zebra resorts to this whenever the latter wears out his voice through overuse of MakesMeWannaShout.
* ''Manga/TokureiSochiDantaiStellaJogakuinKoutoukaC3Bu'' has an excellent example of hand signals used to coordinate bounding overwatch and fire and maneuver.
[[/folder]]

[[folder:Fan Fiction]]
* In the ''WesternAnimation/AvatarTheLastAirbender'' fanfic ''FanFic/BringingOutTheBlue'', Zuko and Mai have a large vocabulary of them. Toph and Suki also use some with each other.
* This is a plot point in the {{Naruto}} fic ''[[FanFic/FirstTrySeries First Try: Team 7]]''. A Kiri Hunter nin [[spoiler: who went to capture [[SparedByTheAdaptation Zabuza]] in Wave]] realize the other two groups are from Konoha from their sign language dialect, specifically their signed ''swear words'', which resulted into a brawl.
** Apparently people tend to sign in the prominent clan language of their team, but Naruto signs in a Uchiha accent, which he picked up from running away from the Uchiha police. He had to teach Sakura how to sign, while Sasuke refuses to sign out of embarrassment.
* In the climax of the ''Disney/LiloAndStitch''[=/=]''Franchise/StarTrek'' crossover ''[[FanFic/StarlightSeries Starlight]]'', Jumba hides his hands behind his back to sign a code for Pleakley to enter into his communicator, to avoid their captor seeing. [[SoMuchForStealth If only he hadn't gotten it incorrect the first time...]]
* In ''FanFic/TheLegendOfTotalDramaIsland'', during the first challenge, when Sadie demands to be on the same team with Katie and Chris refuses, Sadie surreptitiously gives Katie a hand signal that Chris “didn't see and wouldn't have known how to interpret". This is the signal for Katie and Sadie to [[BewareTheNiceOnes physically assault]] Chris.
* This is Chell's means of communication in the ''VideoGame/{{Portal}}'' fanfic ''Fanfic/ThePunishment''.
* In the ''VideoGame/{{Touhou}}'' fanfic ''FanFic/TwentyYearsLaterBunbunmaruSpiritNewsArchives'', Yukari's Oni Shikigami talks through these, in an odd manner bordering on the [[TheUnintelligible incomprehensible]].
[[/folder]]

[[folder:Film]]
* In ''TheThirteenthWarrior'', a group of Viking warriors search a house in absolute silence while another with a bow covers them. Finding nothing, one signals "all clear" with a two-handed wave. The signal is noteworthy because the scene's total silence was a major source of tension- the Vikings expected to find a very deadly enemy in the house. The signal diffuses the tension in an equally soundless manner.
* In ''TeamAmericaWorldPolice'', Gary is about to infiltrate a terrorist cell. He is asked if he remembers the signal he should give if he's in trouble, and responds by waving his arms over his head and pantomiming screaming in terror. This is apparently the correct answer.
** Later, when he does the signal, nobody in Team America recognizes his disguise, so they think he's just an asshole terrorist trying to make fun of them.
* Seth Rogen's character in ''Film/TheFortyYearOldVirgin'' replies to the title character's description of his weekend by making a gun with one hand and firing it into the side of his head, then spreading his other hand quickly on the opposite side to indicate the resulting gore spatter. It was pretty graphic.
* ''Film/{{Predator}}''. Dutch and the members of his hostage rescue team use gestures to give information and instructions to each other.
* Spoofed in ''JohnnyEnglish'': The titular secret agent and his subordinate are sneaking through a parking lot after being shot at. He doesn't want to risk giving away his position, so he tries to use hand signals to tell Baugh to move up one floor and cover that area. But due to Johnny being quite incompetent, he makes several sequences of silly gestures before he gives up and just whispers "You. Upstairs." while pointing.
* ''Film/TheMatrix''.
** As the Agents and police are entering the hotel where Trinity is, Smith makes a "come with me" signal to a patrolman standing guard.
** As the Agents and some police approach Neo's cubicle, Agent Smith gives a hand sign to the police to move down another path.
** As Morpheus and the others are climbing down the shaft inside the building's walls, Morpheus gives a "keep moving down" signal to the rest of the team.
* ''Film/ResidentEvil''. While infiltrating the underground base, Rain uses signals to control the advance of the rest of the team and is echoed by the team leader.
* ''Film/TheMask''. When Dorian Tyrell's men are firing at Niko and his men in the Coco Bongo club, Tyrell orders them to stop by raising his hand in the air with fingers spread.
* ''Film/TheGunsOfNavarone''.
** When the German ship commander orders Mallory to "lower your sails", Mallory gives the order to do so in Greek while making a downward gesture.
** Leutnant Muesel gives a "stop" signal to his troops when they're approaching the wedding party.
** Inside a tavern a Greek Resistance member gives one to a bartender to turn out the light.
* ''Film/JamesBond''
** ''Film/YouOnlyLiveTwice''. Tiger Tanaka uses them twice with his ninja army: once he raises his arm to signal them to enter the crater and once he waves his arm to tell them to advance.
** ''Film/TheSpyWhoLovedMe''.
*** While the KGB team is pursuing Bond down the snow slope on skis, its leader (Major Amasova's boyfriend) makes a gesture to the others to split up.
*** When Bond is holding a Stromberg crewman prisoner, he tells the crewman to call another crewman over. The first crewman calls out to the other crewman and makes a beckoning gesture.
** ''Film/{{Moonraker}}''. While the two scientists in Drax's laboratory are preparing the lethal nerve gas containers, one makes a "come here" gesture to the other.
** ''{{Film/Goldfinger}}''. After Goldfinger and his men enter Fort Knox, Goldfinger gives a signal to one of the men to open the vault.
* ''Film/TheFugitive''.
** When Gerard receives word of Kimble escaping in an ambulance, he gives a thumbs up to his helicopter pilot as a signal to start the engine.
** While Gerard is leading the other marshals through the drains, he makes a gesture indicating they should turn off and take one of the tunnels.
** Gerard makes a "shut up" signal to the other marshals when he realizes that the person calling him is Kimble.
** Cosmo makes a "stretch it out" signal to Gerard to indicate they need more time to trace Kimble's call.
** Gerard makes a gesture to the other marshals during their raid on the hotel, indicating that they need to cover the exits.
* ''Film/OurManFlint''
** Rodney gives a signal to the Galaxy operatives to hook up the trailer to the safe so they can drive away with it.
** Gila gives a signal to the Italians to come out and set up their outdoor cafe on top of the Exotica Beauty company building after it sinks into the ground.
* ''Film/TheLeagueOfExtraordinaryGentlemen''. Captain Nemo uses them to direct his men while invading the Fantom's factory/fortress.
* ''Film/StarshipTroopers''. Lieutenant Rasczak uses them to the [=MI=] under his command while approaching the outpost on Planet P.
* ''Film/{{Aliens}}''.
** During the preparation for the DropShip's departure Lieutenant Gorman gives a "thumbs up" gesture to the pilots and one to Bishop who's driving the APC.
** During the initial entry to the main complex Lieutenant Gorman orders the squads to split up and Sergeant Apone gestures to his squad to do so.
** During the infiltration of the power plant complex Apone gestures to the team before they go down the stairs.
* ''WesternAnimation/ToyStory'':
** The Army Men and their Sergeant used them with each other repeatedly during the recon operation to find out what toys Andy was getting at his birthday party.
** Woody and the mutilated toys used them while preparing to rescue Buzz from Sid.
* In ''WesternAnimation/ToyStory2'', Buzz makes a "come on" gesture to the other toys several times:
** While the toys are traveling at night to rescue Woody and Buzz is scouting ahead.
** Just before the toys enter Al's Toy Barn.
** The fake Buzz does it a couple of times while leading the toys after Al.
* [[ItMakesSenseInContext Mr Tortilla-Head]] uses baseball signals during the escape sequence in ''WesternAnimation/ToyStory3''.
* ''Film/RaidersOfTheLostArk''. While exploring the underground temple, Indy uses them to his guide Satipo when he sees that his back is covered with tarantulas. He signals to Satipo to "Come here" and "Turn around" so Indy can brush them off.
* ''Film/TheSting''.
** The ConMan recognition signal (brushing the nose with a finger).
** When Snyder enters the ConArtist bar and someone knocks on the door, Dukie puts up his hand in a "stop" sign to Kid Twist.
* ''Film/YoungFrankenstein'' has a hilarious scene where Dr. Frankenstein attempts to use charades to communicate with his assistants, since he's being strangled by the monster. [[TakeYourTime One long set of hand signals]] later, and the two of them finally catch on. The Doctor is alive, if miffed.
--> "SED-A-''GIVE''!?!"
* Played for laughs in ''Film/GalaxyQuest;'' Jason gives the "wave two fingers in front of the neck" signal to Gwen, telling her to turn off the communications line with Serris after he pretends to agree to Serris' demands. After she returns the signal, he immediately tells one of the others to fire everything they have before Serris realizes he's not actually capitulating, and tells Gwen to put him back on so he can continue the charade. Unfortunately, Gwen has ''no idea'' how to operate the equipment, and as such left the connection open for Serris to hear the entire thing.
-->'''Jason:''' Uh, Gwen, I gave you the ''kill'' gesture.\\
'''Gwen:''' [[SarcasmMode Yeah.]] No, you gave me the ''we're dead'' signal. I was agreeing with you. Like I know where the hold button is!
* Parodied in ''Film/SavingSilverman'' by Jack Black and Steve Zahn's characters. They are preparing to sneak into the evil girlfriend's house to kidnap her. Wayne (Zahn) makes a few hand signals that J.D. (Black) doesn't understand.
-->'''Wayne:''' Come on man, I'm using SEAL signals.\\
'''J.D.:''' Lay off me, I only know the Ranger signals.
* At the beginning of ''{{Ultraviolet}}'', the commando team leader uses the "closed fist" signal for "stop".
* ''Film/MontyPythonAndTheHolyGrail''
** Arthur uses some to direct his knights after arriving at the castle with the insulting French guards.
** The chief of the Knights Who Say Ni holds up a hand to stop his fellow Knights from saying Ni to King Arthur and his party.
** The enchanter Tim holds up a hand to stop King Arthur's party as they approach the Cave of Caerbannog.
** Brother Maynard points to his assistants to signal them to retrieve the Holy Hand Grenade of Antioch.
* In ''ReturnOfTheJedi'', Luke signals R2 to prepare to launch Luke's lightsabre over right before Luke is forced to WalkThePlank.
* ''Film/FreeWilly''. Jesse uses one of his orca training hand signals to cue Willy to jump the breakwater. Also occurs in the sequel, ''Free Willy 2''.
* ''Film/SavingPrivateRyan'' shows Pvt. Jackson sending a very sophisticated series of hand gestures down from the bell tower to Capt. Miller during the climax, informing him of the location, number and disposition of enemy troops. During the D-Day landings, Sgt. Horvath gives a "cease fire" signal when the last of the enemy troops holding their objective have been eliminated.
* Used in ''Love Potion No. 9''. When the female lead, Diane, gets a sample of the Love Potion no. 8, she receives the power of a CompellingVoice, of a sexual nature and working only with the opposite sex. Upon entrancing a rich mook, to avoid [[BlessedWithSuck the potential hassles of being chased, harassed or desired by every single man at her speaking distance]], she cleverly puts the mook under the assumption she just enjoys [[CuteMute "play the mute game"]], that is using a simplified form of sign language while in public, and [[TranslatorBuddy letting him graciously act as her mouthpiece]]
* ''Film/{{Serenity}}''. While the crew is exploring the planet [[spoiler:Miranda]], Zoe takes the point position. When some overhead lights come on, she holds up a hand to stop the others, then gestures for them to continue after she decides there's no danger.
* ''Film/BladeRunner''. At the end of the movie, when Decker is about to leave his apartment with Rachel. He holds up a hand to stop her, then a few seconds later beckons her forward.
* ''Film/IndianaJonesAndTheLastCrusade''. After Colonel Vogel gives a "move forward" signal, a WorldWarI era tank rolls into sight.
* ''Film/InvasionOfAstroMonster''. The leader of Planet X frequently uses hand gestures while speaking, which to some extent appear to convey the same meaning as his spoken words.
* ''Film/ClashOfTheTitans'' (1981). Perseus uses a "stop" signal to halt the travelers just before they meet Bubo, and also gestures to the soldiers with him as they approach Medusa's lair.
* In ''Dobermann'', the titular character's girlfriend, played by Monica Bellucci, is deaf and the two communicate solely through sign language.
* ''TheSilenceOfTheLambs''. In the 1991 film, when the elevator holding the police officers opens, their leader uses a hand gestures to signal them to leave and then uses another gesture to call over another cop waiting outside. He does this because he thinks Hannibal Lecter is hiding on the roof of the elevator listening to them.
* ''Film/MarsAttacks'' When the Martians invade the senior citizen center where Richie's grandmother is staying, one of them silently beckons a large DisintegratorRay device forward so it can destroy her.
* ''Film/Terminator2JudgmentDay''. SWAT team leaders use them twice: to direct team movement during the infiltration of Cyberdyne, and to order that tear gas be fired at the T-800.
* ''Film/TheGreatRace''. During Professor Fate's first stunt (being pulled up into the air by an airplane), he signals Max to take off by making a flamboyant gesture and Max responds with an "O.K." gesture. As Max is approaching Professor Fate's position he gestures for Max to alter course, then gives him a wave to let him know he's going the right way.
* Spoofed in ''Film/TropicThunder'', as the group is walking through the jungle, Speedman, who still believes that they're still filming the movie, uses the "stop" gesture then proceeds to make a barrage of increasingly ridiculous hand gestures for the hidden cameras, much to the squad's confusion.
* ''Film/SupermanII''.
** During the battle in Metropolis two policeman make "keep coming" signals to an approaching ambulance.
** In the Fortress of Solitude, Zod makes a beckoning gesture to Superman after he steps out of the molecule chamber.
* ''Film/AustinPowers: The Spy Who Shagged Me''. While Felicity Shagwell is trying to meet Austin Powers at the dance party, she uses elaborate hand (and arm) signals to tell her fellow agents to prevent Robin Spitz Swallows from approaching him.
* ''Film/StarTrekGenerations''. When Soren enters the Klingon ship's bridge and starts shoving the crew around, Lursa holds up her hand to signal them not to retaliate against him.
* In ''Film/BlackHawkDown'', a number of the Delta operators are seen using hand signals. "Hoot" uses a particularly elaborate series of signals to coordinate the attack on a technical.
* In ''Film/BattleLosAngeles'' Both the Marines ''and'' [[NotSoDifferent the aliens]] use hand signals.
* PlayedForLaughs in ''Film/MrAndMrsSmith'' when the BattleCouple use them to silently squabble with each other.
* ''Film/UndercoverBrother''. White She Devil uses them to give orders to her henchmen when they're all on motorcycles pursuing Undercover Brother and Sistah Girl, who are in a car.
* Played straight in ''Navy SEALS''. The characters use hand signals to communicate silently when they're on missions near enemy forces.
* Played very straight in ''Act of Valor''. The soldiers featured are real Navy SEALS and used real tactics and gestures during the movie to boost its authenticity. Many of the scenes were conducted during official training exercises to avoid tax payers funding the movie.
* ''Film/{{Tremors}}''. In the first film, Rhonda escapes a Graboid by climbing up a water tower. When Valentine asks her if she's O.K., she gives him a "thumbs up".
* In ''Ghostbusters'', Eagon signals cues to Venkman when they are negotiating the prices for their services.
[[/folder]]

[[folder:Literature]]
* The Tanith of Literature/GauntsGhosts have a masterful grasp of this trope. Every member of the regiment has a wide vocabulary of hand signals, and specific characters that have been deafened by artillery fire communicate with a form of sign language.
** Some hand signs are more or less universal across the Guard; other regiments such as the [[Literature/CiaphasCain Valhallan 597th]] use them as well. The Ghosts have a much more nuanced version, though, as befits their role in scouting and infiltration.
* In ''Literature/RedSeasUnderRedSkies'', there's one scene where [[spoiler: Jean appears to be betraying Locke, and Locke panics because he misses Jean's hand signal letting him know it's all an act.]]
* In ''Literature/{{Dune}}'' multiple characters use hand signals to give orders to their subordinates. In fact, there are entire sign languages developed separately by [[FeudingFamilies the Atreides and the Harkonnens]] that allow them to communicate irrelevant information verbally and important stuff, with their hands, making sure that even if they are overheard, the enemy won't learn anything.
* In ''Literature/TheThrawnTrilogy'' Talon Karrde's smuggler gang use pre-determined physical gestures or turns of phrase to pass covert messages between themselves.
* In the ''Literature/ProtectorOfTheSmall'' quartet the King's Own, a small and highly mobile mounted army, has hand signals for some situations that hardly need them, like a company moving out, and some for situations that do, like scouts reporting that something's close. Kel's [[AmplifiedAnimalAptitude sparrows]] soon learn them.
* In ''Mirror Friend Mirror Foe'', a ninja family is not only trained in that... They can communicate that way while having a verbal conversation on a totally unrelated matter.
* ''Literature/BoredOfTheRings''. When Frito Bugger first sees Stomper the ranger in the Goode Eats & Lodging inn, Stomper uses a variety of hand gestures to invite Frito to meet him in the inn's bathroom in 5 minutes. The other patrons think he's playing Charades and chime in with suggestions.
* Used in ''Literature/TheWiseMansFear''; an entire culture uses hand signals to denote emotions instead of facial expression.
* In the ''Literature/{{Animorphs}}'' series, Andalite fleet officers communicate using hand signs whenever possible (they have four eyes, two of them on highly maneuverable stalks, so see each other is no problem). Telepathic "thought-speech" is reserved solely for situations where signs are impossible, primarily ship-to-ship and ship-to-fighter communication. Actual voice and other sound alerts are restricted to the ship's computer.
* ''Literature/TheWheelOfTime'' has the Seanchan Empress, who communicates with one of her attendants known as her Voice using a personalized sign language dialect, and the Voice then pronounces it. The Empress directly addressing someone is either very good or very bad for them.
** There's also the "handtalk" developed by the female warrior society Maidens of the Spear. Evolved from tactical hand gestures, it's become a full-blown SignedLanguage, used now primarily to make jokes at the expense of a man who is in earshot.
* Creator/DeanKoontz's ''Literature/{{Phantoms}}''. When the helicopter arrives at Snowfield, one of the men aboard gestures to the survivors asking where the supplies should be dropped. Lisa Yamaguchi gestures to the other survivors to form a circle, and the supplies are dropped in the middle of it.
* Literature/EarthsChildren has the Neanderthal people using sophisticated signs and signals. Most stories about Neanderthals written at this time did, because anthropologists believed that while Neanderthals were intelligent, they lacked a hyoid bone in their throat, which is necessary for sufficient variations in sound to evolve a complex spoken language. So they have a few spoken words and many signals. As ScienceMarchesOn, they found at least one Neanderthal with a hyoid bone.
[[/folder]]

[[folder:Live Action TV]]
* GameShows: Producers and directors often use these to communicate back and forth to the host, when they don't want a contestant to be tipped off of the answer or the outcome of a game. These often will change over time as contestants get wind of the signals. One application is ''WheelOfFortune'', when the director signals (subtly) to Pat Sajak that the contestant has landed on the $100,000 or $1 million wedges.
* ''Series/BuffyTheVampireSlayer'':
** The Initiative uses military sign language, but the Scooby gang doesn't, which makes it hard for Riley to patrol with them.
** In one episode, Riley pumps his fist up and down, which the other characters interpret as a gesture meaning to follow him. "Like a train. Choo choo!" Then they start asking what it means. Very loudly.
-->'''Riley:''' It means "Yell real loud, so the vampires who don't know we're coming will have a sporting chance."
-->'''Xander:''' See, now he's all mad and sarcastic.
* Used from time to time as serious, occasionally played for laughs in ''Series/StargateSG1''. When Stargate Command was once infiltrated, Jack and Daniel, as well as some RedShirts, assemble outside of the infirmary. Jack, being a military Colonel, fires off a brief set of hand signals. Daniel, being a civilian archaeologist, signals back by exaggeratedly mouthing the words 'there are people in there', complete with pointing, and pantomiming a walking person with his fingers. Exasperated, Jack signals with his fingers the number three, brandishing his weapon with the other hand, indicating they'd simply rush the room together. Parodied in the very meta episode "200", in an imaginary sequence where Jack is [[{{Invisibility}} turned invisible]]. On a mission, the other members of SG-1 sit there waiting, at which point Invisi-Jack asks "Can't you see my hand signals?"
* In ''Series/{{Supernatural}}'', Sam and Dean have occasionally been shown using military hand signals when silent coordination is needed. Never explicitly brought up, but their Dad (who trained them to hunt) was an ex-marine, making it likely he taught them.
* In the ''Series/{{Farscape}}'' episode "Through the Looking Glass," John Crichton and Aeryn Sun are subjected to a loud, piercing noise that makes it impossible for them to hear one another. Failing to yell loud enough to carry a conversation, they both resort to amusing pantomime for the next several minutes. In particular, Aeryn indicates the sword-wielding D'Argo by chopping with an imaginary sword, and Crichton somehow manages to refer to the diminutive, froglike, hoverchair-riding Rygel by miming a small object floating up and down with his hands.
* ''Series/StarTrekTheOriginalSeries'' episode "The Doomsday Machine". When Spock relieves Commodore Decker of duty and Decker refuses, Spock gives a hand signal to a nearby security guard, beckoning them over to reinforce his threat to arrest him if he refuses.
** In the ''StarTrekTheNextGeneration'' episode "Loud as a Whisper", Data learns sign language from the Enterprise computer banks to communicate with a deaf mediator when the mediator's telepathic chorus is killed in an ambush. Worf is fascinated by the idea of sign language as "communication that is both silent and covert."
* The glorious scene the ''Series/DoctorWho'' episode "Partners in Crime," where the Doctor and Donna are spying on the same enemy from the opposite windows of a room. They notice each other, and [[http://www.youtube.com/watch?v=ICufPDuilHw hold an entire conversation]](which begins at 1:12), starting with distinct mouthing and evolving into miming with especial emphasis, before noticing that the group they were supposed to be watching was watching them.
* Amusingly done in an early episode of ''{{Sanctuary}}'', Magnus and Ashley are communicating an attack plan (Ashley wants to use a different plan). Magnus finishes the exchange with a signal that Will can't translate and he asks about it. Magnus threatened to cut Ashley's allowance.
* In ''BestLove'', Dokko Jin gives Ae Jung's nephew a secret hand signal so he could have some alone time with her.
* On ''TheWestWing'', President Bartlett has had a very inconvenient MS attack while traveling to an important conference in China. While he regains some of his mobility by the time Air Force One arrives, he's still confined to a chair and heavily fatigued. CJ tells him to give a signal if he needs a break from the conference, and suggests he tug on his ear to let them know he needs them to make up a "something's gone wrong back home that needs the President on the phone" excuse. [[NonverbalMiscommunication Unfortunately,]] CJ forgets to tell anyone else about this, largely because the President himself didn't take it seriously at first. She's absent for much of the conference, and returns to find the President frantically tugging on his ear.
* In ''MurphyBrown'', Miles often uses the "stretch" and "speed up" signals used by television directors.
* And in ''Series/ICarly'', the "count down from 5 with silent "1" and pointing for "on" is Freddie's CatchPhrase.
* In ''TheUnit'', hand signals are seen from time to time; a good example is the first episode of Season 4.
* ''Series/SwitchedAtBirth'' has several deaf ASL speakers among the main cast and did an entire episode in sign language.
* Series/MythBusters
** The hosts commonly use a variant form of a scuba-diving "OK" sign, fist on top of head. Presumably it's the version Jamie used in his dive-business days, since he's the one who taught the team those signs as preparation for the Alcatraz Escape.
** Adam goofs with his hand signs during "Underwater Car". Watch closely after he grabs for the emergency air on his first trip down in the car; he first uses a thumbs-up to try and tell Jamie he's all right, which really means "I need to surface" in this context. He then switches to the thumb-and-fingers OK sign, but the other divers keep him on air for the ascent anyway.
* In ''Series/ItsAlwaysSunnyInPhiladelphia'', Frank and Dee sneak into Frank's ex-wife's house to steal her dog. Frank keeps making up military-style hand signals to communicate with Dee, but Dee just snaps at him, saying that they're meaningless.
* ''Series/{{Frasier}}'': Roz plays charades on several occasions to communicate something to Frasier while he is taking a call on the show. On one occasion, she named a caller by pointing to her eye and leaning when her mouth was full.[[note]]The caller's name was Eileen, if you didn't figure it out.[[/note]]
* In ''{{NCIS}}'', Gibbs and [[LabRat Abby]] sometimes trade messages in sign-language when they need to communicate in secret. Gibbs learned sign language as a Marine, while Abby learned it from her deaf parents.
* ''Series/{{UFO}}'' episodes.
** "Computer Affair". When a crew of SHADO soldiers is sent in on foot to attack a grounded UFO, the leader uses hand gestures to his troops to signal them to move forward.
** "Survival". When Paul Foster is leading some SHADO personnel in an attempt to capture a UFO on the Moon, he waves his hand to them to tell them to move up behind him.
** "Court Martial". When three SHADO security personnel are pursuing an escaping Colonel Foster, the leader holds up his hand to stop the others so they can be stationary while shooting at him.
[[/folder]]

[[folder:Tabletop Games]]
* ''{{GURPS}} Fantasy II''. The Madlanders have a set of hand signs that they use to communicate with each other while hunting.
* ''DungeonsAndDragons''.
** The Drow had a language of hand signs in their original appearance.
** ForgottenRealms {{sourcebook}} on Harpers also mentioned their own "silent code" of gestures and expresions. High Drow (archaic dialect used mostly in sacred texts and secret talks between priestesses) is said to have its own hand sign system.
** 1st Edition had alignment languages, which included special signals and gestures.
* StarWars saga edition had handsignals in one splatbook handled elegantly as a language. Well worth the cost, if you're playing that sort of campaign.
* ''TabletopGame/InNomine'' (American version) supplement ''Superiors I: War and Honor''. When questioning/interrogating an angel, Dominic's angels communicate with each other using finger/hand codes so as not to tip off the suspect.
* ''Neverwhere'' RPG. Sewer Folk use Handsign (hand signals, mime and touch) to communicate with each other.
* ''TabletopGame/{{Paranoia}}''
** 1st Edition adventure ''The Yellow Clearance Black Box Blues'' Mission 4. When the Boss Honcho of the PACE Studio realizes that the Troubleshooters want Black Boxes, he will use a hand sign to his Goons as a signal to attack.
** The XP edition has a skill for this (Twitchtalk). Secret societies often use it for recognition signals (many of which are similar enough to be [[HilarityEnsues mixed up]]).
[[/folder]]

[[folder:Video Games]]
* [[VideoGame/{{Battlefield}} The Battlefield series]]:
** In the intro cutscene to ''[[VideoGame/{{Battlefield}} Battlefield 2142]]'', an infantry squad enters an enemy Titan through the vents. The leader raises a fist, tilts it forward and opens it, pointing his spread fingers forward for "Advance."
** Mocked in the "Rainbow Sprinkles" trailer for ''VideoGame/BattlefieldBadCompany''. B Company don't recognize the signals Sarge is using, speculate about what he's trying to say, and ultimately don't see the point of using them when they're all standing right there anyway. A frustrated Sarge makes a closed fist and explains "This one means I'm gonna put your lights out!!".
* Eddie's orders to his troops in ''BrutalLegend'' all have associated hand signals that appear on the orders cross. He even goes through them in the JustifiedTutorial: he's allegedly teaching the somewhat thick Headbangers what the signals mean, but he's also teaching the player. Stop is the military raised fist. For follow, he raises his ax. Charge is, appropriately, throwing "the horns".
* In ''MetalGearSolid4,'' you can sometimes spot a PMC squad leader giving hand signals to direct his troops around an area. [[GeniusBonus Savvy players will notice]] that, in higher difficulties where the troops operate with more realistic tactics, the gestures actually indicate what they're going to do next, letting the player anticipate or track their movement.
* ''Day of Defeat'' has stock phrases in voice (which good bots understand) doubled in silent signals.
* ''VideoGame/EndlessOcean'' often makes use of the "OK" signal often used in real scuba diving.
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/SouthPark'' [[http://www.youtube.com/watch?v=oSbyav7qQh8]]: when the boys are playing detective Cartman uses (made-up) military sign language to communicate with Kyle, but he doesn't understand; so Cartman translates as he goes:
-->I - see - two guys - inside - They - have - Sarah Peterson's - doll - you - stupid - Jew!
* In ''WesternAnimation/{{Ben 10}}'', [[RetiredBadass Grandpa Max]] shows a knowledge of military hand signs during a stealth mission to rescue giant alien monster eggs (and Ben). ItMakesSenseInContext.
* In ''StarWarsCloneWars'', Captain Fordo is completely silent in the heat of battle, and gives orders to his ARC troopers exclusively with hand signals.
* ''ThePenguinsOfMadagascar'': While infiltrating a plush toy factory, Skipper gives King Julien hand signals to go ahead and keep a lookout. Julien doesn't understand the signals, obviously, so Skipper simply screams the instructions to him, who responds with "Why didn't you just say so?"
* In ''B.O.B.'s Big Break'', the short made for the ''MonstersVsAliens'' DVD, General Monger (who was still captain at this point) does a series of silly-looking signals to a team of unseen commandos ready to attack if the monsters tried anything funny. Later it is revealed that [[spoiler:there are no commandos, and Monger just likes doing silly signals.]]
* ''TheSimpsons'': When Homer was in the power plant's baseball team, Mr. Burns instructs him with a series of bizarre hand signals which Homer doesn't understand, mostly because his mind wandered off while Burns was explaining them. This worked in their favor: Homer is hit by a pitch as he looks at Burns' signals, sending in the game-winning run.
* The ''WesternAnimation/TeenTitans'' episode "257-494" had Beast Boy trying to make all sorts of complicated hand signals while peering around a corner. The rest of the Titans simply walk past him. He keeps doing it for a few seconds before realizing they've moved on.
* ''JonnyQuest'' episode "Pirates From Below". When Colonel Svedry is up on the underwater prober and about to enter it, he makes a beckoning gesture to his subordinate who is standing on the sand below.
* ''TheHerculoids'' episode "The Raiders". Igoo and Zandor use them to signal the beginning of the attack.
* Played with and [[LampshadeHanging Lampshaded]] in ''WesternAnimation/TheVentureBrothers''.
-->'''Brock:''' You have no idea what that means, do you?
-->'''Hank:''' Sure I do!
-->'''Brock:''' You're just having fun with your hands, aren't you?
-->'''Hank:''' No...//
** A deleted scene shows another way that could have gone, where Hank ''did'' know what he was doing. Brock interprets Hank's signals, but vetoes his idea because they don't have a ladder. Hank says that's hardly his fault.
[[/folder]]

[[folder:Real Life]]
* In live broadcasting, hand signals are used by the director to communicate with on-air performers:
** Raising arm, lowering it dramatically and pointing to the person(s) on stage = Cue. "You are now live and on the air" (Usually preceded by a countdown from five in which "one" is not spoken, just in case the microphones go live early - familiar to ''iCarly'' viewers.)
** Clenching fists together and pulling them apart slowly in a stretching motion = Slow down. "You have more time than material, stretch it out."
** Spinning open hands or fingers over and around one another in a rapid circular/chopping motion = "Hurry up, commercial break/end of show approaching rapidly"
** Hand held palm up, a raising gesture: Louder. Palm down, patting gesture: Softer.
** One hand raised like a traffic cop saying "stop": Stand by.
** Slashing motion across neck = Cut. "Stop saying/doing what you are now immediately"
** There is a similar set of signals used in recording to indicate cues, crossfades, segues and so on.
* Military hand signals established around WW1 are used to communicate without giving away your location. Various signs indicate the direction of the enemy, the distance to the enemy, and the amount or type of enemies.
* Baseball players and coaches communicate in hand signals--catchers signaling what pitch to throw, coaches signaling to batters and base runners--both to hide strategy decisions from the other team and due to the large distances between players that make audible signals impractical.
* The hand signals used by cyclists are also standard practice for motorists to use when their cars' turn signals are for some reason non-functional. For both reasons, you will be most likely required to know them for a DrivingTest.
* Many types of animals are trained with hand signals. One well known example is the use of signals with whales or dolphins. Signals and signs are also used with deaf dogs. Horseback riders use a variant,touch signals, in Dressage.
* Hand signals are also used by deaf people with hearing-aid dogs.
* In the UK, a system of hand signals known as Tic-tac is frequently used by bookmakers at racecourses to signal betting odds to one another. John [=McCririck=] is well known for using these when speaking to camera.
* Hand signaling is also used in the [[http://en.wikipedia.org/wiki/Open_outcry open outcry]] format of stock/trade exchange. Further info can be found [[http://tradingpithistory.com/ here]].
* Referees in American Football use hand signals to "announce" the result of a play, a time out, or a foul. These days, most college refs and all professional-football refs will use a wireless microphone to announce the fouls over the stadium PA, but they'll still give the hand signals as well.
* Divers, who cannot speak under water, learn a series of hand signals so that they can communicate with one another while submerged - basic ones include thumbs up for "I am ascending", thumbs down for "I am descending", open hand with spread fingers rocking back and forth for "Something is wrong", and three versions of "OK" - the normal one, a circle of thumb and fingers for when you are wearing gloves, and both arms making a triangle around your head for when you're too far from others for them to clearly identify a one-handed OK. The "Cut Off" gesture mentioned in the page head is intended for one of the most serious situations a diver can encounter: "I am out of air".
* Workers around noisy heavy machinery such as earth-movers, cranes, railroad locomotives, and aircraft have their own vocabulary of hand signals to communicate between the operators and those on the ground as there must be clear ways to direct and/or stop large things from moving in a hurry to avoid running someone or something over. For example, the basic railroad brakeman signals are: Up-and-down, go forward. Circular motion, back it up. Side-to-side, stop. (They're as simple as possible so as to be usable with just a lantern in pitch-black conditions.)
[[/folder]]

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