Then cultivate the idea, that the other person is also, in fact, a person and gets a ton of advances.

Especially as a man it is difficult to approach a "high league" woman, because she gets approached by tons of guys and you have to convince her somehow that you're a) not another creep and b) actually maybe worth her intention.

I'm not trying to blame women here, just keep your eyes open to what good looking women have to endure in some circumstances. That's horrible. And blocking many advances by default is kind of self defense.