<p>I ask occasionally but I’m always as polite as possible and its always in the context of a conversation which already involved grades. I usually just say “what’s your gpa, if you don’t mind me asking.” If they’re uncomfortable with revealing it, they just say “its pretty low” or something along those lines. I never tell what my gpa is after I ask unless they subsequently ask me as well. It would just seem like I’m fishing for vindication if I come out and say my gpa when they didn’t ask.</p>