#1
Ok soo sometimes if Bakugo feels like he's annoying or getting a bit too clingy with Kirishima he won't say anything or ask Kiri he'll lock himself in his dorm until Kiri has beg him to open the door usually over texts bc when Bakugo does this he'll turn off his hearing aids.
#2
If Kirishima feels he's being too loud or energetic around the class he'll distance himself from everyone and he'll sign to Baku that he's leaving or something and yeah :)
#3
The class always try they're best to sign when communicating with Baku and not make him mad or upset or anything to make him stressed ig