THANK YOU orangecitris

Izuku: mostly complete sentences. Def slang.
F L U F F : Y r u like this, Shiko?? i thought i cOULD TRUST YOU *enter gif here*

Shoto: no punctuation, no capital letters (it drives Ori a little crazy)
Shaq commercial: i think yamaga had the car keys last
lets go to target today alright

Opal: full, complete sentences with syntactic variety
Cactus Mum: Have you eaten yet tonight? Remember that you can't grow without proper nutrition; eat some vegetables and fruit please.

Hoshiko: who the fuck knows what they type-
RED HAWT CHILI PEPPERS: Y'know bakubitch, if you werent such a dick maybe ppl would enjoy being around you 🧐🧐🧐🙊🐒🕺💃🧩🔕💫💫💫💫💫🌟

Kero: lowercase, seldom responds, maybe punctuation??
Nya-Nya-Nya(hegaylol): can you remove me from this cat plz i'm tryin to sleep?
Four hours later
chat*

Omori: teenage girl 100
Drip-drip: Woaaaaaah that's hilarious lol ;333!! Wait- you mean to tell me to tell him to tell Oppa to tell Mr Aizawa that we want to organize a party?????
SURE!!!!!!

Katsuki: has shockingly good grammar, mostly bolder letters tho
KA-BOOOOOOM!!: BITCH I'LL SMACK YOU. GET OVER HERE SO I CAN GIVE YOU THE GIFT OF MY FOOT UP YOUR ASS.