Do you think he is interested?

There is this really hot guy at my school, and I had a crush on him for like a second until I thought he just wasnt interested. The first time we ever talked we were laughing and smiling and teasing, and it was all good. That was the last time and after that I thought I noticed him looking at me more. Like in the lunchroom and all over the place. I am pretty sure he is a shy guy. but I just started feeling like it wasnt worth crushing over him anymore because he wasnt really looking at me all that much or giving off any signs that I could read.

But tonight at a game he couldnt take his eyes off of me. We were sitting across from each other on the bleachers and as soon as he looked over and saw I was there he just maintained this intense eye contact. It happened a couple times, where I would look and catch him watching me with my friends, and he totally wouldnt look away even when I caught him.

should I start my crush up again or what?