The unreachable crush

I have this real HOT guy that I like for a year now, hes with me at the same college, but older. Its been a year now & I cant get to know him, I mean personally. I just see him, I like him but we dont talk! He sees me, and my friends tell me this too, " He notices you" they always say, and he exchanges those looks back with me, he searches for me the whole day, in breaks or whatever, and I dont wanna go talk to him and embaress myself or something.
What can I do, any suggestions?