We have to stand on the bus and tell a joke.

The game goes like this: a student must tell a joke they have made up on the spot.

But what happens if you replace these with positive signs, inviting people to jump, dance about and tell a joke?

I was asked to tell a joke on camera, and to chat about my life with the casting agents.

It's not their ability to yell any more, or talk without drooling - it's the inability to tell a joke with proper timing.