Guys: why do you stare at girls in class?

Do you only stare at girls you find attractive?
Does it mean a guy likes you if you always catch him staring?
What does it mean when I always make eye contact with a guy and he looks away quickly?
What does it mean when he DOESN'T look away and keeps on looking at me for a while?
Updates
+1 y
how to tell if a guy likes you FROM HIS STARES?
Updates
+1 y
This guy used to try to flirt with me and I found him annoying from the beginning but then one day he made fun of me and it hurt my feelings and it made me dislike him even more. Then he would be like "why do you hate me?"
I have class with him AGAIN and he always just gazes at me sadly...
Does he like me?
Updates
+1 y
I make eye contact with this other guy a lot
He looks at me when he first walks to his seat and again before he leaves Like he's checkin on me?
Guys: why do you stare at girls in class?
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