How do you react if a guy looks at you or checks you out?

[Gintoki123]

Whenever I look at any girl briefly I get stared back at as if I committed a crime, why?

[mandyfire98]

If he looks at me I'm fine with it, if he is staring at me then I have a problem.

[AssholeNumberOne]

Cuz they need to loosen up.

[Anonymous]

It can make some women uncomfortable