I use to watch a show which featured a young table tennis team losing a game. This means they were out of the competition or something. On the way back to school, the pupils were clearly dejected, portraying long sad faces. The teacher decided to sing them a song......

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

The students cheered up. S34 are students.

Wei Jie