There are no advance preparations necessary. She played extra quietly so mother could sleep some more.
Kindnesses are like bubbles, they just keep coming.
When you do a kind thing, someone else does something kind because of what you did. Then someone else does and so on and so on. Ask the children to help you continue thinking of kind things Susie and her mother might do throughout the day. For each thing they mention blow a bubble or let them blow a bubble. At the end of the activity blow many bubbles at once.