GUYS: what do you think this boy means???? HLP NOW 10 PTS first answer =)?

ya so there is this kid i my school and he always looks at me and the other night our school had a dance and i THINK he was talking to his friend about me caz they kept on looking over. but the thing i dont get is, is sometimes he pertends that he dosent even see me . like with his friends. why does he do that. like he dosent look at me. ??? im confused HELP ME!!!! thanks so Much? what does he mean.