I don't think anybody cares outside of school / college, but yeah, in schools it is. I don't really talk at school unless I'm talked to, so even though we're over halfway through the yeah, people always say "Oh, I thought you were a mute", or "Are you new? I've never seen you before." and I've been in this school for 3 years.
But yeah, the people that do know of me give me hell because they know I won't do anything about it, and they think it's weird that I'm quiet. While being an introvert probably isn't the main cause of them annoying me, it is a big part of it. Or at least, part of why they get away with it. I've now realized that half of what I've written makes no sense or isn't relevant, sorry... ^-^;
Edit: Just read darklord60's post, that's the gist of mine