I would make a joke and she would just stare at me with a kind of “what?” expression on her face while my friends found the joke funny. Humour and being “the funny one” is kind of what I do in my friend group so her absolute inability to find anything funny really caught me off guard. Literally tried everything. Puns, satirical jokes, wordplay, slap stick, you name it.
Disdain for things that hurt no one and benefit many. For example: throwing cigarette butts (or any litter) in the trash; returning your shopping cart; wearing a mask; being polite; wanting better wages. Treating waiters and waitresses bad. Talking bad about people who aren’t around to stand up for themselves. Making you feel bad for your own opinions if theirs is different.