Cute guy in my class?

[Sarah]

There's this cute guy in my class. I have a huge crush on him, almost every girl has a crush on him. But he never pays attention to any girl. He isn't gay so don't say that!!!!
He comes to class late, and then leaves immediately as soon as the class ends. He doesn't really talk to anyone, he doesn't even have guy friends in college. I only know his name and nothing else. I found him on facebook but he has so much privacy. He seems to have a small social circle. What should I do ? Should I add him? He doesnt even know if I exist. I really want to talk to him!!!!