I like this guy but idk if he likes me what do i do?

i really like this guy but im not sure if he likes me. i think he might b/c he sends signals that he does some r after school when we get off the bus if he gets off b4 me he walks slow and waits for me or if he ges off after me he will call my name so i wait for him or we get off together he stairs at me in lunch and when i go to his table and some ppl tell me to leave he doesn't and also some days on the bus he stairs at me we r like best friends and always hang out in the summer and i used to always go over his house but not really anymore and now i like him alot and idk what to do plzzzz help ! =D