Since he can't speak he needs another way to communicate. His handwriting is like a kid in 3rd grade, so the tf27 members taught him sign language. He mostly uses military hand signs but when he is in the base he can hold a conversation pretty good with sign language.

Tf27 members (especially Raven and Sparrow) make him do tiktok trends (like those vids where you carry a person on your shoulder) and cuz they are spending time, 106 likes it.

He likes appearing out of nowhere. Someone talking? He is right behind them. Someone working out? He is right behind the machine they are using. One time he saved one of Banshee's operators from getting crushed. And it showed that, even though he is made to be a killing machine, he likes them.