There's two sets of co-workers I have, the people who have the same job as me (dispatch company headquarters, other foreigners basically) and people at my actual place of work.
The other foreigners are high school as fuck and form cliques. If you're not one of the "cool kids" you are forcibly ostracized from their little group. It's made even more annoying because they act very polite and articulate, but will not hang out with you, will roll their eyes when you talk, won't respond to you in the group chat, will make group chats without you, and won't take anything you say seriously. I HAAAAAAATE this. I'd be more ok with it if they just admitted to themselves they want to exclude people from their bourgeoisie club and told us to fuck off directly.
My co-workers at my job are super chill and cool and ACTUALLY nice, though, which is awesome.