Personally, I think that a waiter in a restaurant is a simple service job, simply ordering food and serving drinks, while a hotel waiter, including a waiter in a restaurant, also needs to know etiquette, which is to treat people. Hotels are generally civilized areas. Civilized people who come into contact with hotels will have higher general cultural knowledge and be polite, and they will also learn a lot of civilized manners and open knowledge from their manners. "Those who are close to Zhu Zhechi will be black."