Sad but true. Us guys judge a girl by her appearance (what am I saying, everyone judges by appearance). Generally if a girl isn't cute, we don't want to be approached by her. And if a girl is really cute, we don't really expect to be approached (unless we're really popular, arrogant, etc.). So I guess you could say we either don't want to be approached by you, or don't expect to be. So if you're cute, it might take a guy by suprise, but he probably won't mind it at all.