Here's a fun idea: When you laugh or smile--pass it on! A story about giving, sharing, and joy.When you see something terrific, smile a smile and pass it on! If you chance upon a chuckle, hee hee hee and pass it on. Should you spot a thing of wonder, jump for joy and pass it on!So begins Sophy Henn's ode to the excitement of sharing happiness with others. With a refrain that begs to be uttered before every turn of the page, children will eagerly read alongside their parents a