generally speaking, value-added service is to provide guests with services other than standard services. For example, help the guests to carry things with the permission of the guests. Try to remember the last name of the old customer, and use the last name+Mr./Ms./Ms. According to the needs of the guests, we will provide services within our capabilities. When the guests are waiting in the lobby, they can serve tea. If the guests are drunk, they can help them call a car. In short, sincerely and professionally provide services to guests.