Is this guy a shy guy or just not attracted to me?

I’m 19 F and the guy is 19 M in college

There’s a guy I think is cute. I approached him once while drunk because I recognized him as a micro-influencer just trying to be friendly . I asked if he was Insta famous. He said “I don’t know” and smiled nervously. I asked his name. He answered but didn’t ask mine. He answered all my questions short and then smiled at the end and shook my hand . We shook hands. His friends smiled at me and copied the handshake with him .

Months later, at a different bar, I caught him staring at me twice. I wasn’t looking first and didn’t know he was there . He didn’t look away or smile. The first time he was sitting alone on a bench looking up at me while I was standing in front of him just on the phone and I didn’t know he was there. Another time I walked past him and he was already looking at me. He never approached. He doesn’t smile but he doesn’t look away when I catch him. I don’t look first . I see him around sometimes on our college campus and he’ll stare at me and not look away when I catch him still but has never smiled . I don’t smile either because I can’t tell if he thinks positively or negatively about me.

Now I can’t tell if he thinks I’m weird or attractive. I’ve heard he’s polite and I know for sure he’s not a hookup type of guy . I thought he was cute. Maybe he’s not attracted to me. Maybe he thinks I’m weird. Should i smile next time or drop it?