I’ve been playing the sims forever and I still don’t know how to get that “selfie” interaction that you used on your graduation pictures. Help?

Hi! Unfortunately, it’s not really an interaction. 😦 It’s actually part of the graduation cut scene that happens after your sim throws a graduation party after finishing their last semester of college. (Maybe it also happens even if you don’t throw a party? I’m not really sure.) Anyway, did you ever toggle an option to disable cut scenes (first woohoo, first kiss, etc.)? That might be why it’s not showing up for you.