What should I do?

So I have a crush on this guy and he's the "cool kid" in the school. I wanted to make the first move but I didn't have the courage to. If you have a snapchat, you'll know that there will be a notification when you are typing. I typed "hi" twice but I didn't send it. I see him everyday and I think he knows that I like him and probably thinks I'm a creep. What should I do?