is he trying to tell me he likes me, 或者 is he just trying to annoy me?

this boy at my school, he keeps looking at me in class. It seems like he is flirting at me, but i'm not sure. My friend told me he is just trying to annoy me. But in a different class, he wants me to go after him and kick him. So IDK what the deal is of him. So, is he trying to hint that he likes me, 或者 is he trying to annoy me?