Knowledge: Arab countries write from left to right, which is opposite to Western culture. On the other hand, Bhutan writes number seven like an upside-down J.

Conversation:
7 is my favourite lucky number!
Neat! Have you heard of how the Hindus wrote the number 7? It was more like an upside-down J.
That's cool. Do you know another country that writes like that?

Response: Well, Bhutan also writes number seven like an upside-down J.