It's Nice to be NIce

When Brobee gives his friend Foofa a flower, she is very happy, but Brobee is a little surprised when she doesn't say thank you. But later on, Brobee asks his friend Muno to help him without saying please. Plex, the magic robot, explains the importance of these three little words to the Yo Gabba Gabba gang, and also why it's "nice to be nice!"