Guys, Is this just normal guy behavior?

This guy at work constantly stares at me. Some of the workers their told me the same thing. But why is he uncomfortable around me. I get on the elevator with him and another coworker lady and I'm standing by him I don't know why but he rubbed his hands quickly through his hair. She gets offs and just me and him. He's sort of fidgeting like he couldn't wait to get off.

If he's uncomfortable around me why does he stare so much at me. When I'm working and he's nearby, he'll turn his head in my direction just to look at me. Or while he's waiting for the elevator, he'll turn all the way around just to stare at me. One of the workers saw him and they said he jumped and turn around so quickly. On a another day he was waiting for the elevator as he was waiting he turns all the way around to look at me for a long time when the elevator doors open he was still looking at me he almost missed the elevator.

Is this normal for men to do that for no reason or is there a reason.

Guys, Is this just normal guy behavior?
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