The Boy Who Said "No Thank You" to Everything. Magical Whimsy Books, #5

Matteo is the politest boy in the world-and he's discovered a magical trick: if you say "no thank you" nicely enough, you never have to do anything at all. No breakfast. No shoes. No school. No problem. But when Matteo politely refuses the sun, the wind, and even Gravity itself, the world decides it has had enough. Suddenly he's floating up, up, up into the sky-where he meets Celestina, another expert in saying "no thank you, " and learns that magic comes with rules.
To make it back home, Matteo must do something far more powerful than refusing: he must say "yes please"-and mean it. A whimsical, heartwarming tale about manners, magic, and the courage to say yes to life.