Location: indoor or outdoor
Materials: none!
Peek-A-Boo is a classic game to play with infants. In the beginning you will be the one to cover your face and say "peek-a-boo!" to the infant (and watch their face light up in delight every time!). As your infants develop they will be excited to join in on the game as well, being the ones to cover their faces.
Possible Extensions: