How do you get a12 year old popular guy to like you?

If you say he is popular with other girls then you are up against a lot of competition. One way for him to notice you (and this may seen a strange answer) is not to notice him. When you pass him anywhere just avert your eyes and ignore him completely. This may drive him mad to think that someone is not interested in him. I would not be surprised if he wants to find out why you ignore him, them young lady you have him, if you play your cards right. Perhaps you can say that you have all the boy friends you can manage at the moment. Just remember not to be another of his conquests if you give in. Be in charge at all times.Good luck young lady and may fair winds blow him in your direction.