What does the speaker mean?

"I learned a lot of street smarts during the years when I had to walk through Times Square to my office every day. I walked with confidence, was aware of people around me and held on to my purse real tight."

Harry thinks he’s God’s gift to women: that none of them can resist his charm. So we all laughed at him when he asked the new girl in class to go to a movie and she told him to get lost.