The guy i like acts very interested in me. Texts me every other day and keeps looking at me. But sometimes it feels like he's getting nervous and trying to ignore me. Does he like me or not how to be sure?

You don't ask random people on the Internet about your personal friendships and relationships. We don't know you or the person you are asking about. Just go and talk to him. Get to know him. See what kind of person he is. If you want to know something about someone - ask THEM. You can do it. Good luck.