I have a crush who I think likes me. What should I do? Guys please answer!?

He looks at me during cl, and when I feel his eyes from the corner of my eyes, I look back sometimes and he doesn't look away. I kind of want to ask him, but I make the Cowardly Lion look like the terminator (that quote's from Twilight, fyi). But I really like him, so what should I do? ANSWER NOW!