How can I tell if a boy likes me?
You can tell if a boy likes you by the way he looks at you. This boy will always make sure he notices who you are talking to and feels happy when you are close to him. Get more tips on http://felixker.com/love-relationship/how-to-know-if-a-guy-likes-you/.
He does stupid things.
He'll be flirty with you, try to make you laugh a lot, talk to you a lot, maybe blush when he's near you, he could be a little nervous talking to you, playful teasing...you can usually tell ;) Or maybe you could ask him!