Author Karen Rostoker-Gruber and her puppet Maria read “Maddie the Mitzvah Clown” at the Kaplen JCC on the Palisades in Tenafly. The book is the story of a girl who despite her shyness decides to become a mitzvah clown to make her grandmother and her friends smile. Other activities include family fun with a real life mitzvah clown, balloon animal making, juggling, singing, and dancing. Leron, (201) 408-1467.