An exchange at work just now:

Colleague: "The weather forecast says it'll be hot again at the weekend."
Another colleague: "Will it? Cool!"
Me: "No, hot, not cool."

Giggles all round.

I would have gotten icy stares.

Years ago Dean Martin had a French singer, Mireille Mathieu, as a guest on his show. They were going to sing a song together and the exchange went like this:

Mireille: We sing an American song. Okay?
Dean: Oh, I start.
Mireille: Qui.
Dean: I start.