Join Lyle as he goes to great lengths to make his new pet mouse smile. He juggles balls, trips on his own feet and even tumbles backward into a can of paint to entertain his furry friend. Children will laugh out loud as Lyle's hilarious attempts become more and more outlandish. He barks, and quacks, and clucks and moos, but in spite of Lyle's buffoonery, it is his little sister's calm ingenuity that makes the mouse beam from ear to ear.