Does this mean I have a standoffish vibe?

I'm in college. When I'm in class and the professor picks on me, other people never laugh even when I say something slightly funny. But when other people say anything slightly funny, there is always someone laughing at it. For me, only the few people I've spoken to laughs at what I say. I'm a very... show more I'm in college. When I'm in class and the professor picks on me, other people never laugh even when I say something slightly funny. But when other people say anything slightly funny, there is always someone laughing at it. For me, only the few people I've spoken to laughs at what I say. I'm a very quiet girl who doesn't talk to too many people in class. It may not necessarily happen because I'm quiet, this has happened on the first day of school where nobody knew me. People just didn't laugh at all even if it was laugh worthy.