Knife, fork or chopsticks?

      Friend D said that recently at a large restaurant, while drinking tea, he saw a young couple nearby eating with the old lady whom they got acquainted  with in a foreign country. The old lady was interested in the operation of chopsticks, learning to use chopsticks to get the shrimp dumplings. D said that he has an American friend, who had spent some time studying the methods of proper use of chopsticks whenever he has the opportunity to show you, and said that using chopsticks is a kind of art, also an ancient Chinese culture.