Growing hearts of kindness - Reinforce kind behaviors by giving the child labeled praise and allowing him or her to put a heart on the tree. “Katie, I saw you help your friend clean up and you didn’t even make that mess. That was so kind of you! I think you made Gabe happy when you did that. Come put a heart on the tree so we can remember the kind thing you did today!” Pointing out the feeling of the person receiving the act of kindness is really important to reinforce too.