Has he taken an interest? FULL POINTS?

So I'm a junior girl in marching band and there is this young guy who comes to help. He is 21 and I am 18. I see him every once in a while in band. The past couple times I've seen him he has 1) greeted me by saying "Good morning" and I could feel him staring at me. 2) I was walking down the hall towards my next class which is close to the classroom he speaks in, and he was talking to a male student and he looked around the male student to catch a glimpse at me. 4) I was walking into the door and he was walking out and he really stared down at me. 5) I was at lunch and he was walking by staring at me. So... what's up? Does he think I'm cute or something?