How do you get a guy that you don't talk to to like you?

So, there's this guy at my school that I like..

I'm not popular- I'd say I'm pretty average. I don't sit with the 'weird kids' (not to be mean), however I am friends with some of them and get along with them. I'm friendly with everyone, and I'm nice as well. BUT!! Some of the popular boys in my grade tease me with my snapchat username because some of them have me added, and tease me about this guy I had a talking stage with. Anyways, I don't really care about that stuff, and I usually tell them to shatap n stuff. But the guy I like is one of those popular guys.. and he's really hot too :( His code name is sheep. Anyways, please help me!! I need advice.