Guy in my class stares at me?

There is this guy in my class and he always sits in the front rows, I always sit at the back. I've noticed a couple of times that he would turn around for minutes at a time to stare at me. And I mean stare! He doesn't frown, he doesn't smile, his face doesn't "say" anything at all. I have no clue what his endgame is... We haven't talked much, he is even avoiding me as far as I can tell. I'm not ugly but I'm not the prettiest girl in class either. What could this mean!? Is this some kind of mind game?
Guy in my class stares at me?
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