Confidence: It's the difference between the girl with the perfect body in a one-piece bathing suit, pulling at it and thinking she's not thin enough or doesn't have big enough boobs - and the girl who people call a bit overweight, but meanwhile, she's wearing a bikini and guys are saying, "God, she's sexy." It all has to do with how you feel about yourself - it's about projecting the attitude, I'm OK with who I am.