Waiter. According to relevant public information, customers in service industries in Sichuan and Chongqing, such as shopping guides and catering industries, especially catering industries, such as waiters in hot pot restaurants and string incense, are all called "little girls". In most other areas, waiters are called "Miss", which is a polite expression. In Sichuan and Chongqing, the word "Miss" refers to the waiter in the "special service industry", which is very derogatory, so the waiter in the general service industry is renamed "Little Sister".