Denki is a hilarious yet stupid enough man.
Stupid enough to tick Katsuki off the edges, tell Izuku to 'break a leg' when the latter had broke a leg, hide while wrapped around Ojiro's tail so Kyoka couldn’t use her quirk on him without also doing it to the tailed man.
He's a bit of a menace as it can seem. But that doesn’t mean he's not who he's not the friendly, energetic, teasing-like Denki. But that's not really the topic here.
... "Pffffftt--- wahahahahaha--!!"
Denki clutched onto your shoulder, hitting his knee as he tried not to fall on the floor and instead stumbled on you, trying to calm his laughter.
What was he laughing about? An interview with Katsuki and Shoto where Katsuki kept his answers within brash yells and Shoto didn’t give a shit and answered normally.
The others like you, Hanta, Mina and Ochako were too, but he was literally louder then anyone else.
"BASTARD! I'll kill ALL of you if you extras keep laughing like hyenas!" Katsuki threatened, sparks escaping from his palm while Ochako's giggling lowered in sound and Shoto paused at the sight after walking in the room suddenly.
Denki just cackled more at Shoto's abrupt appearance, his grip on you tightening as he tried to speak in between his laughter. "I-- I can't even breeathh--!!!"