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, and you really want to show it
If you're happy and you know it, clap your hands.

If you're happy and you know it, stomp your feet
If you're happy and you know it, stomp your feet
If you're happy and you know it, and you really want to show it
If you're happy and you know it, stomp your feet.

If you're happy and you know it, nod your head
If you're happy and you know it, nod your head
If you're happy and you know it, and you really want to show it
If you're happy and you know it, nod your head

If you're happy and you know it, turn around
If you're happy and you know it, turn around
If you're happy and you know it, and you really want to show it
If you're happy and you know it, turn around

If you're happy and you know it, say "we are"
If you're happy and you know it, say "we are"
If you're happy and you know it, and you really want to show it
If you're happy and you know it, say "we are"

Una de las canciones más populares entre los niños ingleses. Las acciones que se hacen son:

- clap your hands = toca las palmas
- stomp your feet = da pisotones con los pies
- nod your head = asiente con la cabeza
- turn around = date la vuelta
- say "we are" = di: "¡somos nosotros!"

El resto de la letra es:
- if you're happy and you know it = Si estás contento y lo sabes
- and you really want to show it = y realmente quieres mostrarlo