How do you get a boy, that might like someone else but on the other hand might like you, like you?

There is this guy at my school. He pretty much looks like Logan Lerman. Eyes so gorgeous, adorable smile, he has got muscles, curly hair which is really awesome cuz I've got curly hair too. But ha he is so hottttt!!!!!!!! I can't stop thinking about him. But since he looks like Logan Lerman I think that's why I like him or that's why I think Logan Lerman is hot because he looks like the guy I have a crush on. Help me I'm so confused. How do I get him to like me if he might like someone else (and she's a friend) but he also might like me.