If you have a crush on someone, the best thing to do is become friends first. By being friends you'll get to know him better and know if all the things you like about him from a distance still hold true close up.

If you're already friends with your secret crush, be honest with yourself. Does it seem like he's interested in you? Is he always talking about other girls around you, or even asking other girls out? If he's making it clear that he's not interested in you in that way by saying things like, "You're such a great pal," you might want to think twice before you declare your love for him.

But if the two of you really are close and you think that he might be too shy to make the first move, or that he has no clue that you like him, then tell him how you feel. Okay, not exactly how you feel. You probably don't want to tell him you think he's more handsome that Matt Damon, or more intelligent than Einstein. But there's no harm in starting with little hints like inviting him to a school dance, to see a movie, or even asking him if he could ever see the two of you going out. Teenage crushes come and go so don't get upset if it doesn't work out.