I have observed many different behaviours from drivers belonging to different country. I understand that a lot of people may find a particular behaviour rude but for the driver, its just acting naturally according to the culture and environment he himself was brought up in.
It's quite interesting actually.

Ofcourse these aren't highly educated men who can understand cultural differences and act appropriately.

For me, i just observe people, be amused or learn something new about a different culture, and if there is anything inappropriate said, i just give it the benefit of doubt.

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Quidquid latine dictum sit, altum sonatur.