Why do guys like to wink at me?

Yes, you're the only one on the entire planet...no, in the entire UNIVERSE who finds that creepy. As for why they do it, how the flying hell would we know why when we don't know you at all?

They wink at you, Cuxi, because they think you are cute and they enjoy joking and flirting with you. It does seem awkward when guys wink at you, and especially when women do it to other women. So, I can relate to that creepy feeling.

I guess you probably are, I would think most girls would like a guy coming on them in a way that is easy to brush off, you can just ignore him and he will get the message without you having to rip him apart in front of a bunch of people, calling him a creep and a loser, ya know?

It's their way of flirting with you and showing that they're attracted to you.  Since it makes you feel uncomfortable, ignore them and they'll lose interest.