You can use motions to act out parts of a story. Use props to inspire creative performances. First the adults can pantomime the actions of the characters. Children will have fun doing a pantomime for their audience. Children do all the time.
Musical experiences can come from almost anywhere.
With your child, listen to the woosh of the wind, the hum of an air conditioner, the squeak of a new shoe, the drip of a leaky faucet. Join him with your own homemade instrument, and together make up a song. Tap that out with your child. Orchestrate a book. Every time the Gingerbread Boy runs, for instance, have your child rub a comb against a brush to make a musical effect.