"Boys are different." It was refrain I heard many times when I was pregnant with my now 21-month-old son, Sam. My daughter was almost 3 when he was born, and because she was my first and only, I figured all kids were pretty much like her: adventurous but initially cautious of new situations, overtly emotional (or should I say erratic?), and in my mind, wild because she was into everything, was constantly dancing and gyrating, and was often seen wearing few, if any, clothes. But, almost two years later, I've learned there's a difference between spirited and wild. My daughter is the former, and my son is most definitely the latter. He's all boy, and man, boys are different. Here (in my experience, which has been corroborated with many a mom-of-boys friend) is why.