I've been talking to a Co worker for a while now but I don't know how he feels. He is always saying hi to me whether I am busy, don't even know he's there or just waiting for something to do. He helps me out sometimes, says my name a lot, teases me and we joke around. He also followed me on social media. He never seems nervous around me though, and he has never complimented me or asked for my number. Should I try messaging him over social media? Just keep talking to him and wait? Or do you believe there is no chance? Thanks!