From Prague

Cronopio A sends an SMS to Cronopio B.

Cronopio A: "Dove sei?"
Cronopio B: "Sono a Praga!"
Cronopio A: "Anch'io sono a Praga!"
Cronopio B: "Che Bello!"

Much laughter follows.

Repeat at least five times a day, even (especially) when in each other's presence.

(Cfr. Julio Cortazar - Viaje a un pais de cronopios. It's available online somewhere, google for it.)