Sometime during the first month or so, babies begin to realize that they can make things happen! Although your little one has a short attention span and a short memory, she will begin to repeat actions that have an effect on the world around her.
One of the ways you can do this is by putting wrist/ankle rattles on your baby. You can either buy some pre-made ones or you can easily make them yourself by attaching jingle bells to socks!
Put the rattles or socks on your baby. Sit baby in an infant seat and move her hand or foot with your hand to make the rattle sound. Repeat with the other foot or hand. Play until she understands that moving her hands/feet will ring the rattles!