He recently had to learn sign language for a student of his, Bakugo Katsuki, who was going deaf because of his quirk. He had never thought he’d need that sign language for a case he was involved in- one that involved a deaf minor (can be any age). He was asked to simply talk to the kid, calm them down a bit after what happened. He’d lightly sigh, scared he’d mess something up before looking back down at said child, somewhat bluntly signing + saying to them, “How are you feeling..?”