culture does things differently.For example, in Japan, slurping your soup is a compliment to the chef. It’s rude not to slurp!
In Arab cultures, it is profoundly offensive to throw your shoe at someone.In Thailand, you should bow upon meeting someone rather than shake their hand.
In Vietnam, you should only shake hands with someone who is equal, whether that is by rank or by age. In other countries, the woman should instigate the handshake and it’s rude for a man to offer.Read more on positivelypositive.com