what do i do if every time i'm around this guy i like i get really nervous and can't approach him and talk to him or i can't look him in the eye and hardly talk at all? and to top it off when he asks me a question i answer with a short response.

You have a crush on him, that much is obvious. But you need to muscle your way past that feeling, maybe get to know him a bit more, you'll be fine :)

Just be yourself. If you try to be "cool" and mess it up, he'll just think your a fool. And try to think out your answers before you answer... lol but don't take too long. What I do is just laugh when they laugh, lol even if what they say isn't all that funny. It makes them feel good. But angain, just remember, BE YOURSELF. You'll be fine. Gl!!