How Shouto summarizes the U.A. Entrance Exam to Touya:
Shouto: "It was kind of cool. And kind of weird. I met some other kids. Saw that guy who saved me ten months ago. Some girl puked on my shoes and then cried." Touya: "What."
After Izuku rips into how he's been conducting the Quirk Assessment tests, Aizawa manages to throw him with an Armor-Piercing Question of his own:
Aizawa: "You've done an excellent job of unraveling the logic behind this entire assessment, so — do you really think I would proceed with a plan that has that many inconsistencies to begin with?" Izuku: "I mean. Maybe? I met you two hours ago."
Punctuated by Shinsou snorting at his Brutal Honesty. And further losing his shit at the follow-up when Izuku interrupts Aizawa's explanation:
Aizawa: "Did I miss another logical fallacy, Midoriya?" Izuku: "No, I just had a question, sensei. Were you actually lying, or are you just saying that because you've changed your mind?"
Kirishima's reaction as he tries to barge through the defenses Momo set up around the bomb 'off-screen':
Momo and Izuku get really into the post-match assessments during the Heroes vs. Villains exercise, leading to them unintentionally dominating the first discussion — which, since the first match involved them going against each other, leads to them picking apart each other's tactics... and derailing into discussing the finer points of their respective costumes.
When it comes time for Class 1-A to determine who their Class President will be, it turns into a landslide vote... for Hiyamizu-kun's dog, Hiro. Tenya is fit to be tied by the results. You must feel for the poor boy- Tenya in canon lost, but he could at least understand why he lost to other classmates. In this one he loses to a therapy animal.