Different Cultural Society - e.g. In Middle Eastern and African Culture, it's rude to pass items, with the left hand, as they believe that the left hand is used to clean yourself after using the bathroom. Also in Vietnamese culture, it is very impolite to touch members of the opposite sex and pass items with both hands. It's also disrespectful, in Vietnam to leave your chopsticks poking out your rice bowl, as this represents incense sticks at funerals - SB
