If I saw a girl do that, I wouldn't think anything of it or have an urge to pursue her, women of all kinds do that all the time. Especially ones who live for attention just for the sake of getting attention. The most dangerous kinds. A lot of Men do not know how to read the motivations behind why girls are looking for attention, and this is why they get led on. In the 1970's I think there was still a sense of coupling where if a woman made such gestures, she was naturally interested in the guy, but this is rarely the case now. And they usually are doing this to dozens of Men.An example of an interested woman sending an indirect signal where a man is supposed to pick up on it.