How does a woman know the difference between a man rushing into sex and him just wanting to be friends/acquaintances?

Many women (not just working women, but women in general) have get creeped out when a male flirts with her, little does she know that he’s just being friendly with her, and is NOT looking for sex or anything romantic. Immediately she assumes that it’s stalking when a guy reaches out to her, which would make many guys nervous. He only just wants to be a friend. And going out (date or no date) does not mean sex. In fact, many guys like me get creeped out by the stupid “friends with benefits” crap. The thing is, how will the girl know that he’s not rushing romance or any sort of marital privileges?