You can chat with customers during the service and get into this topic slowly. Now WeChat is widely used, and customers generally agree. You can tell customers directly that our company has created a WeChat group, which includes all the customers served by our store. You can add it, and you can make an appointment directly on WeChat in the future. If you have any health problems, you can also ask them directly in the WeChat group, and we will reply to you as soon as possible. Moreover, this is a resource integration. You should know what business this customer does. Just look at your customers and see if they are related to her industry. For example, your customer is doing central air conditioning, which happens to be decorated in your customer base. Just say that my other client is a decorator, and I can introduce him to you. Speaking of this customer, they are all very interested, because it is good for her, so they naturally joined this group. It's not difficult.