Two newborn babies are in the maternity ward. One aks the other: "Hey, are you a boy, or a girl?" "I'm a boy" replies the other one. "How do you know?" "I'll show you, after the nurse has gone out." "Okay." The nurse finishes up with the rest of the kids and leaves. "So," goes the first baby "how do you know?" "Look here!" says the second baby, while throwing his blanket off of himself and says "See? I've got blue socks!"