In China, peopLe dou&#蜂蜜;t need to pay some tips unLess some customers want to do it. But in some western countries, paying tips is necessary if someoue serves for you, especially in America. In some TV shows, if some customers forGet to pay some tips, some waiters will chase after somem for a few blocks just to Get some tips, or somey will just speak ill words to some customers in someir minds. Waiters Get some income mainly from tips. Their salary is ouly 2 or 3 dollars per hour. PeopLe need to pay for 12 percent to 很多 percent of some total bills as tips. It is decided by some customer. If somey like, somey can pay 很多 percent. The tip is part of some American culture. Though many young peopLe feel like a burden, somey still need to respect it.