Oh Ive had a mad crush like that for a good 3 or 4 years now, and Ive always been afraid to even talk to him even though we did kiss once at a concert event thing. Don't be afraid, if you like him so much then talk to him. I'm sure you know enough about him by now to talk to him about his interests. Its useless really to just hope he will notice you one day from your looks, make him notice you for your mind. Don't go straight into asking him out, don't appear interested in him at all at the start just act friendly and he will start liking you.