"If You're Happy and You Know It" is a popular nursery rhyme , credited to Dr. Alfred B. Smith, midway through the 1900s. Meet our interpretation of the popular song for kids. Lyrics If you're happy and you know it Clap your hands. If you're happy and you know it Clap your hands. If you're happy and you know it Clap your hands, clap your hands. If you're happy and you know it Clap your hands. If you're angry and you know it Stomp your feet. If you're angry and you know it Stomp your feet. If you're angry and you know it Stomp your feet, stomp your feet. If you're angry and you know it Stomp your feet. If you're scared and you know it Give a shiver. If you're scared and you know it Give a shiver. If you're scared and you know it Give a shiver, give a shiver. If you're scared and you know it Give a shiver. If you're sleepy and you know it Take a nap. If you're sleepy and you know it Take a nap. If you're sleepy and you know it Take a nap, take a nap. If you're sleepy and you know it Take a nap. If you're happy and you know it Clap your hands. If you're happy and you know it Clap your hands. If you're happy and you know it Clap your hands, clap your hands. If you're happy and you know it Clap your hands.