Maybe you’re too shy to come right out and say, “I like you.” Another option is to invite him to spend some time with you. Keep in mind that it’s okay for girls to ask out boys (and for boys to ask out boys). Spending time with him will help you gauge how he feels about you and whether you should start spending more time with him.  This shows him that you want to spend time with him and get to know him better.  For example, ask him to go to a dance or to a sports game with you. Say, “I got two tickets to see the basketball game on Friday, and I was hoping you’d be free. What do you say?” As a shy person, you might do best by preparing to tell him you like him. Decide that you want to do it, then act on it. For example, decide on a specific day and time to tell him you like him. Do something to help you follow through, like writing it down in your planner. For example, if there's a party on the weekend that you know he's going to be at, tell yourself, "All right. I'm going to keep an eye out for him. When I see him, I'm going to wander over and bump into him, then I'm going to tell him." No need to have his friends eavesdropping or casually listening in. As a shy person, you don't need an audience! He will also appreciate your tact and respect for his privacy. Read the situation and pinpoint an appropriate time to talk. If he’s in the middle of talking to somebody, wait for a few moments. Once they walk away, it’s your chance to approach him. Don’t let your conversation drag on too long without telling him you like him. He might become disinterested or the conversation might fall flat. You can start by saying, "Hey Xavier, you got a moment? There's something I'd like to say to you." Then follow by saying, "I've been enjoying spending time around you a lot lately. And I just wanted to let you know that I like you. I was hoping you might feel the same way."
Invite him to spend time with you. Set a deadline for when you want to tell him. Choose a moment when he is by himself. Get to the point and tell him.