How do you get a hot guy to like u?

Hey, I remember having that same problem when I was 12. Remember to not only focus on his looks, but if he's a decent guy, then go for it!
So here's what you do: You should take an interest in what he like, such as music, video games, TV, etc. You should also try and become friends with him, and his group of friends, so you get to know him better and that will give you more of a chance of him liking you. You could also try flirting a little. Smile at him and make eye contact, and sometimes it's good to do a little bit of touching, on the arm or shoulder. Another good tip for flirting is to wear something that makes you look good. Guys tend o focus on the physical appearance at first, so it's good to look your best. You could start to do your hair in a pretty way, or see if your guardian is OK with you wearing a little makeup.
Good luck! Even if it doesn't work out with him, I'm sure another great guy will notice you! :)