Jim is having lunch at Li Ming's home.

Li Ming: Jim, have noodles, please. Can you use chopsticks? 
Jim: Oh, yes, I can. But I can't use chopsticks very proficiently. 
Li Ming: Do Americans usually use chopsticks when you eat something? 
Jim: No, we don't. American eating is funny. We eat almost everything with a fork and a knife. 
Li Ming: Should I hold knife in my right hand all the time when eating? 
Jim: No, holding a knife in one's right hand longer than a few seconds is considered to be bad manners. If it is necessary to use a knife, people take the fork in their left hand, and cut off a piece of meat. Then they put the knife down, transfer the fork to their right hand, and put the food to their mouth. This is ridiculous ( 滑稽可笑 ), but it is considered good manners. 
Li Ming: Oh, that sounds very difficult.