It ties in with the myth that women aren't allowed to make the first move. But in reality, women have always made the first move. You see, when you look a person in the eye, it's an invitation. Come talk to me.
It helps a man's ego because, in reality, a good guy is not going to come talk to you unless you give him the go-ahead. That nod of approval, the eye contact, is the first move. This is a women's power. With one look a girl can get guys to surround her. She doesn't have to be pretty, young, or aggressive.
Who approaches first isn't important either. What is important is that both parties give the go-ahead. Sometimes, guys will be too nice, too insecure or carry the weight of rejection to walk over even though your staring at him and he looks like he really wants to come over. This is a case of two cars at a stop sign and none of them proceeding because both want the other to go first. The guy is trying to be nice and you're trying to give him his ego strut with the come hither look.
What a dilemma! He doesn't want to be a creep and you'll be called a "slut" for walking over to him. Tell me, who wins in this game?
Time for women to take their power seriously because Grandma's advice of "let the man approach first" didn't work in her time either.