That "smile over the shoulder" girls give to guys?

Anonymous
What does it mean? This girl has done it quite a few times lately and it just feels awesome. We finish our interaction and I would say something ad she is walking away and she will look back at me, give me a very sultry "look" and smile at me. It does not look like a forced smile at all, that's why it feels awesome. what's the meaning behind it?
That "smile over the shoulder" girls give to guys?
3 Opinion