'''Basic Trope''': A character puts up a cheerful appearance to hide their true insanity[=/=]depression.
* '''Straight''': Alice seems to be happy, but she turns out to be deeply depressed or psychopathic behind the mask of cheerfulness.
* '''Exaggerated''':
** Alice the [[TastesLikeDiabetes painfully sweet]], [[GenkiGirl eternally]] [[{{Keet}} happy]] child is actually the [[DarkAndTroubledPast angst-]][[{{Woobie}} ridden]] [[WoobieDestroyerOfWorlds bringer of death]].
** [[TheAce Alice who is charming, beautiful, chipper, intelligent, talented, and sharply dressed to the extreme]] [[BrokenAce turns out to have a past that]] [[DarkAndTroubledPast "dark and troubled"]] [[TraumaCongaLine does not begin to describe]].
** Alice regularly has tears streaming down her face while maintaining a natural smile and speaking tone.
* '''Downplayed''': Alice never stops smiling, even when she's upset, because she ''is'' [[ThePollyanna a genuinely cheerful person]] [[IsThisWhatAngerFeelsLike who isn't used to experiencing negative emotions]].
* '''Justified''':
** Alice is a villain who is completely insane but who operates more or less secretly, and would likely be locked up in an asylum if she showed her real nature, [[FauxAffablyEvil so he pretends to be happy and polite]].
** Alice is a hero who is completely sad and depressed, with little or negative self-esteem, but to help her friends and everyone he cares for, or to hide her insecurities, she pretends to be happy and cheerful.
** Alice is in denial about something that deeply disturbs her, and constantly tries to ignore it.
* '''Inverted''':
** JerkWithAHeartOfGold or TheSnarkKnight (type A), {{Kuudere}} (type B), or ObfuscatingInsanity (type C).
** Alice is unable to smile, even when she is incredibly happy.
* '''Subverted''': It looks like Alice may be hiding a dark true nature, but then we find out it's all a lie, and they really are happy.
* '''Double Subverted''': Oh wait, Alice really isn't depressed at all... and then we learn that instead, their mask is hiding their [[AxCrazy insanity]]
* '''Parodied''': Alice constantly switches between AxCrazy and [[TastesLikeDiabetes tasting like diabetes]], without dropping the smile. PlayedForLaughs. The other characters openly discuss what the heck is with her.
* '''Zig Zagged''':
** The character seems to smile a lot and has been hiding some amount of depression, but his mask cracks and slips so often one must begin to wonder what is really happening inside the character's head.
** Alice is a MoodSwinger who always smiles, but sometimes it's real, sometimes it's not.
* '''Averted''': Cheerful characters are cheerful, and aren't hiding any dark inner feelings at all. Depressed, hollow, and insane characters look and act depressed, hollow, or insane.
* '''Enforced''': The series has taken a turn for the DarkerAndEdgier, and now Alice looks really out of place, but [[PutOnABus putting them on a bus]] wouldn't work... I guess we'll have to give them some secret angst or madness to let them fit in.
* '''Lampshaded''':
** "I alway knew Alice ''was'' hiding something! That perpetual cheerfullness isn't a natural thing!"
** "I know I seem happy and cheerful, but in actuality [[WhamLine I hate my life and want to die!]]"
** "You're so happy and cheerful, I love it!" "That's just the surface, sweetie. Inside, I'm dead!"
* '''Invoked''': "Uh-oh, Alice seems oddly happy. I betcha she's actually depressed or crazy- let's try to learn more about her past."
* '''Exploited''': Alice is asocial and hates people, so she uses a creepy smile to drive people away so she can be alone.
* '''Defied''': Alce , after being [[BreakTheCutie broken]], refuses to try seeming happy anymore and chooses to appear just as angsty as they are.
* '''Discussed''': "You aren't hiding something bad inside Alice, are you?"
* '''Conversed''': "You know how all those characters who seem happy are secretly depressed, or insane, or both... That creeps me out, man."
* '''Implied''': Alice stops smiling when alone.
* '''Deconstructed''':
** Alice narrates the story, with their internal desperation and madness overwhelming the effect of their external serenity from the start of the narrative.
** Hiding all their problems behind a smile slowly takes a toll on Alice's probably already fragile sanity. Finally, something happens and this character snaps, either in tears or into a homicidal rage.
* '''Reconstructed''': And despite all the characterization, Alice is ''still'' a hollow, empty shell of a human being.
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%% Optional items, added after Conversed, at your discretion:
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%%* '''Plotted A Good Waste''': ???
%%* '''Played For Laughs''': ???
%%* '''Played For Drama''': ???