dont worry about it. Im shy, but people think Im stuckup and cocky (well... maybe in a physical sense ) I just use it to my advantage to not meet people I dont want to meet. (doest that make me stuck up) Then once people get to me they probably wish I was still shy... lol
JO i have always been shy but i have been breaking out my shell gradually. one thing i have always kept in my mind is the fact that most everyone is just as self conscious as i am. everyone else is worried that they are looking like a retard, and when you look at everyone else...they are generally not being retarded. but you are so consumed in yourself looking dumb that you don't realize that everyone else is thinking the same damn thing. start talking to people, it's not as bad as it appears to be and no one is going to kill you or point and laugh at you.
It's true I do come out of my shell if I'm drunk or on X, but the hardest thing I find myself coming up against is carrying on a conversation with someone I don't know or just met, it just seems like I run out of things to say.