Jack has taken to begging for food lately. He'll spot something he wants -- say, Steve's glass of water. He'll then point to it, and in quickly increasing levels of franticness, say, "Agua! Agua! AGUA!" as if he is in a dessert and has just come upon a beautiful oasis, with ice-cold water poured by Elmo himself. Then, to really show he means business, he'll open his mouth as wide as he can, like a Pez dispenser or Pac-Man and will say, "Aaaaah!"