I have heard some other aspiring pua's that after a failed approach calls the girl a bitch or other stuff. If you are like that then try to learn from the failure instead and don't blame the girl. You don't know why she acted the way she did.

For me personally i love women and my goal with approaching is to have fun but also make the girl happy. Having self amusement in a way that makes girls annoyed will create a negative vibe and their shield for future approaches will thicken. Maybe she does not get approached so often and based on that she might think that all men are assholes when approaching.

Leave the girl in a better state than what you found her in!