Peekaboo is a favourite game to play with almost all young babies. Babies do not understand that something, or someone, continues to exist even when they cannot see them. This idea is called “object permanence”. This is why babies look startled when you “disappear” behind your hands, but then are delighted when you “magically reappear” and say peekaboo!
At around four months your baby will begin to develop an understanding of object permanence. “Hide and Seek” games can be a fun experience to share. Try hiding a favourite toy under a blanket. At first make sure that the toy is still visible, to encourage your baby to find the toy successfully. Most babies will enjoy playing over and over again, as they begin to understand that the toy is still there, and that they are able to find it all by themselves.