How could I become more attractive?

I am 15, and a sophomore in highschool. I wear make up, and do my hair, but guys have really never been interested. As concieted as this sounds, I feel like i’m prettier than some girls who have boyfriends. I have alot of guy friends, and everybody says that you need to be friends first, but we have been friends. I’m not the kind of girl that will tell them my feelings, because that makes people feel weird. What can I do to change their minds?