No need to pour water. If guests bring their own mineral water, you don't need to take the initiative to pour water under normal circumstances. In service places such as restaurants or hotels, adequate drinking water is generally provided for guests to enjoy. If guests want to pour their mineral water into the cup, please provide them with a clean cup so that they can pour water. At the same time, you can also take the initiative to ask the guests if they need help pouring water to ensure that their needs are met. Providing thoughtful service is one of the keys to improve customer satisfaction and the image of the catering industry.