Supermodel Tyra Banks believes she is still single because she doesn't know how to be sexy with a man. The former catwalk star and talk show host has modelled for fashion houses including Tommy Hilfiger and Victoria's Secret, but she still has trouble finding a man, because she loses her confidence when she's on a date. She says, "Put a camera man on me and I'll give you sexy. But put me at a candlelit dinner table with a guy and I'm a dork."