I've used this as a closing song for Baby Time with great success. Both moms and babies love it (dads too!). The tune is the standard Hokey Pokey tune, and for the motions, just follow the lyrics. At the end, lift your baby up in the air.

The Baby Hokey Pokey

You put your arms up

You put your arms down

You put your arms up

And you wave them all around

You tickle, tickle, tickle

And you wiggle, wiggle, wiggle

The baby hokey pokey is fun! 

You put your legs up

You put your legs down

You put your legs up

And you wave them all around

You tickle, tickle, tickle

And you wiggle, wiggle, wiggle

The baby hokey pokey is fun! 

You put your baby up

You put your baby down

You put your baby up

And wave her all around

You tickle, tickle, tickle

And you wiggle, wiggle, wiggle

The baby hokey pokey is fun!