The unsteady stance of an infant learning to walk.  Clinging to furniture, a knee, his mother’s hand.  Keys jingle, tempting him to step away from the solid safety. He steps once. Twice. With a third step and a lurch he reaches out and grasps the keys in his pudgy fingers.  He balances, unsupported and gleefully shakes the keys before landing with a “whump!” on his diapered behind.  The adults in the room cheer and clap.  He looks  wonderingly in the face of each one, not sure what the cause for celebration is.  He claps his hands and cheers along.