My bf's brother is a quiet guy who works alone in CA. When he's out and about, he draws the attention of women to him for some reason and he doesn't even realize it. He doesn't believe it either. He is clueless that he is being hit on....he thinks they just are asking innocent questions of him. How can I prove to him that he's a lady magnet? How can he learn to pick up the signs when he is being hit on?