Lay your baby on a blanket, touch different body parts as you sing: "Head, shoulders, knees and toes; Head, shoulders, knees and toes; Eyes and ears and mouth and nose; Head, shoulders, knees and toes, Knees and toes." (Then sing, "Head, shoulders, eyes, elbows", or substitute other body parts). See variations for older children below.
Use your hands or a puppet - A fun bath time activity.