Knowledge: Countries like Germany and Japan think 7 as cool and popular. On the other hand, Canada, South Korea and Scotland believe the number after 6 is a lucky number.

Conversation:
7 is my favorite lucky number!
Neat! Have you heard of how the Hindus wrote the number 7? It was more like an upside-down J.
Really? What other cultures have history with the letter?
Well, the western Ghubar Arabs' main contribution was to make the longer line diagonal rather than straight, though they showed some tendencies to making the character more rectilinear.
Oh cool. Do you know if countries think the same as I think of 7?

Response: Ah yeah, Canada, South Korea and Scotland also think the same as you about 7.