Life is full of moral dilemmas. Preteens and teenagers enjoy wrestling with the question: "What would I do?" A new book, "It's Up to You... What Do You Do?" by Sandra McLeod Humphrey, poses ethical challenges that test kids' values. One example: A girl, Courtney, invites her three best friends for a birthday sleep-over. All three cancel at the last minute for different reasons, in favor of more "exciting" activities. Courtney calls a shy girl from school, who is thrilled at the invitation. Which girl would you want for a friend? Why?