So there is this guy in one of my classes and we sit pretty close to each other. I've had a huge crush on him for a little while and I need to know if he's actually interested. He teases me like allll the time, so I of course tease him back. Today he kind of playfully hit me in the chin to get me to shut up (sounds weird but it was cute haha) then we made eye contact a couple times I don't know if it was a coincidence or not though. How can I hint to him I'm interested? Does he sounds interested?