Hmm I think when ppl talk loud in expected to be a little more mature places, like college. Some students that are all over 18 in-between classes or time off speak to others screaming, like if they were playing cards... Either they get somewhat high to be so hyped up in college they act like teens speaking loud as fuck thinking they're being cool or... Idk... I don't like when ppl are too formal either (not that it annoys me at all), but I like joking around and being provocative (all consensual and between friends who know the other will take as a joke and make fun of me back)... When an interaction is so formal, it gets tiring to me. Like, I try to reach a balance. But I'm unusually good to adapting to the person's style, since I'm fairly good at reading social cues, so when it's a conversation that I know won't last long, I can get along very well. But ofc I don't overstep boundaries by going along with an absolute asshole in a conversation just for the sake of not making it uncomfortable, if they're some PoS or say some absurd shit, I'd likely tell that to them openly if they were talking that to me --- not insulting me, but making racist, sexist, or outrageous comments/jokes in serious situations.