Goblin Harry getting clotheslined early on, due to the cartoonish twang sound he makes when he hits Peters web.
J. Jonah Jameson has high blood pressure and medication to take, while Miss Brant has a charge from his wife to make sure he doesn't lose his temper, a long history of being treated like his dogsbody and an intercom with a loud buzzer. Revenge is had.
The buzzer is so loud that when the desk gets rattled every time, it's hard to tell if it was because of the vibrations or Jameson's startled jumps.
Not helping things is that Jameson is having to sit through a terrible presentation about how to try to make the Bugle more hip and attractive to younger readers, which is being delivered by an underling who clearly doesn't have the first clue how to be more hip and attractive to anyone. This doesn't improve his blood pressure.
The little boy who is repulsed by Spider-Man and Gwen kissing.
"Give me rent!"
While probably unintentional, MJ's line to Peter accusing him of a possible relationship between him and Gwen Stacy. "How come you never mentioned her? She's your lab partner, you saved her life, she thinks you're a genius and she had her polished fingernails all over you?" Just the way she finishes with the "polished fingernails" bit makes it sound like Arson, Murder, and Jaywalking, as if Gwen having polished fingernails is part of what's wrong. Then again, MJ issort of the tomboy to Gwen's girly girl.
Right before that during the exchange with Gwen, Gwen innocently turns to MJ as she says "it's not every day you get to be kissed by Spider-Man!" MJ, in response, gives a great The Un-Smile and says "Can't imagine."
And the scene where they look? The now legendary moment where Peter comes out of the clothing store with his new look and starts pelvic-thrusting in front of the door. It has to be fully seen to be believed.
Dr. Connors watching the sample of symbiote biomass bumping Peter's blood cells to the beat of the background music.
The moment Peter hears its Dr. Connors on the other end, he pretends he has been bored to sleep by his mere voice. The rest of the scene he spends by completely ignoring whatever Connors is saying. When Connors asks him if Peter has kept the Symbiote with him, hes too busy talking to Ursula. When Connors is confused by Peters non-response, Peter just adds a nonchalant No, of course not! without even listening to what he said.
Peter saying "You're lookin' fine, babe" to Gwen as he walks with her into a jazz club.
And then there's the dance scene in said jazz club, where he starts off playing piano (out of nowhere, really) and then says "Double time!", jumps over the piano, walks across the bar (stealing a guy's drink in the process) before doing a ridiculous and impossible slide across the room on a chair. After taking off his jacket (the force of which blows back Gwen's hair... somehow) and throwing it at the stage, he does a stupid little to-and-from slide before saying, in a completely serious voice, "Now dig on this..." before air-thrusting and snapping his fingers to the tune of the music. It's so ridiculously stupid, it's funny.
During the final battle, Peter and Harry are flying downward on his glider trying to catch a falling Mary Jane. Peter asks if it can go faster, to which Harry responds with "Hang on!". Peter aptly notes "To what!?"
Also when Harry says "Hey Pete! Am I interrupting!?" when intruding on a Peter/MJ moment.
While watching the final battle, JJJ gets conned by a kid. See it here.
Even better, a background extra stares at the camera when Harry pulls a Vehicle Vanish shortly afterwards, making you wonder if Harry's just awkwardly hiding under the table to dick with Peter.
Most of Eddie Brock's moments before he starts to have his Sanity Slippage.
Eddie encountering the black-suited Spider-Man.
Eddie: Woah, buddy, love the new outfit. [Spider-Man turns around] Its exactly what I need to scoop Parker. Gimme uh, gimme some of that web action! [gets his camera ready] Spider-Man:[shoots a web at Eddies camera and swings it towards the wall, breaking it] See ya, chump. Eddie: WHAT THE HELL?!
This exchange between Eddie and Captain Stacy.
Eddie: I dont know, I just saw her last night she said she had a modelling gig. Captain Stacy: Who are you? Eddie: It's Brock, sir. Edward Brock Jr. [shakes Captain Stacy's hand] I work at the Daily Bugle... And I'm dating your daughter.
Bear in mind they're having this conversation while Gwen is dangling off the edge of a building, about to fall.
"There is no evidence that Spider-Man was involved in the bank robbery, and the Bugle apologizes for any implication of his wrongdoing in the matter," Jameson said, "To airbrush Spider-Man into a photograph and make it look like he's a criminal-that's just something we would never do here at the Bugle."
Jameson walks in on Peter trying to flirt with Betty Brant on his desk.
Betty:[standing very close to Peter] These shots are so good. Peter:[standing very close to Betty as well] I'd love to shoot you sometime. Betty:[flustered] P-Peter Parker! Peter... [they lean in] Jameson: PARKER! Miss Brant, that's not the position I hired you for!
When Spider-Man confronts Sandman in the armored truck, he initially thinks he's just dealing with a standard criminal, tossing out a classic Spider-Man style quip in the form of "Maybe you haven't heard but I'm the sheriff around these parts." He realizes differently when he takes a swing and his fist gets stuck in Sandman's chest.