Openness is not just about keeping the door open, it also requires attention to detail and continuous improvement of service quality. On the morning of April 28th, a reporter from the Beijing News saw at the passenger service center on the north side (Exit E) of Wangfujing Station on Line 8 of the Beijing Subway that the newly opened foreign currency exchange window had clear and eye-catching signs, and the electronic display screen was scrolling with the types of currency that could be exchanged and the exchange rate for the day. According to reports, the passenger service center can provide real-time exchange services for more than 40 currencies including US dollars, euros, Japanese yen, etc., and innovatively launch precise services such as online reservation and customized exchange of banknotes, effectively solving the pain points of "long queues, few currencies, and shortage of banknotes" in traditional branches. It can be seen that this foreign currency exchange window not only enriches the business model of subway services, but also compensates for the pain points of the financial industry. Wangfujing is well-known and is one of the must visit attractions for tourists visiting Beijing. In addition, Wangfujing is a well-known commercial street with strong demand from foreign tourists, making foreign currency exchange an indispensable service. Opening a foreign currency exchange window directly at the subway station can be considered the most suitable location. The average daily passenger flow at Wangfujing Station on Metro Line 8 exceeds 100000 people. For foreign tourists, the subway is one of the most convenient means of transportation to Wangfujing. We provide foreign exchange services here to alleviate the urgent needs of tourists who are short of RMB. This is not the only service window of Beijing Metro. Previously, Dongzhimen Station on the Capital Airport Line also opened a currency exchange service window - Dongzhimen Metro Station can directly access the airport, which is also a popular destination for foreign tourists. Adding foreign exchange services is actually just a specific detail of Beijing Metro's convenience for foreign tourists. In addition, many popular stations have used translation machines. During the May Day holiday, the Beijing Hong Kong subway will collaborate with university volunteers to provide more convenient travel services for foreign tourists. All of this is filling in the details of an open China. Recently, people can feel that China's various opening-up measures have significantly accelerated. Starting from expanding visa free and connecting payment measures, to promoting the "buy and refund" policy for outbound tax refunds nationwide, various measures to facilitate foreign tourists are accelerating. With the gradual implementation of these policies, an open attitude towards the public perspective is being shaped. Visa free promotion promotes tourism, "buy and refund" stimulates consumption, and subway station currency exchange facilitates payment. These are all issues that ordinary tourists are concerned about. Focusing on polishing these travel details is also a way to bridge the gap between China and foreign countries from the perspective of "private matchmaking". From the data, it can be seen that today's Chinese culture and Chinese manufacturing have significant appeal to foreign tourists. According to reports, the number of inbound tourism orders during the May Day holiday has increased by 173% year-on-year, with many foreign tourists bringing large suitcases to China to shop. At the recent Canton Fair, overseas buyers increased by more than 20% compared to the same period in previous years, and the Consumer Expo attracted over 60000 professional buyers worldwide. All of these demonstrate China's international appeal, and its open stance has been echoed worldwide. "China travel" and "China purchase" are becoming more and more popular, so that foreigners have "grown up" in some places, and there is an endless stream of "shop hunting" and "grass pulling" in China. Of course, people should also recognize that facilitating foreign tourists still requires continuous improvement in details. It can be imagined that with the increasing openness of China, the focus of foreign tourists is becoming more and more refined, and some new problems may emerge. For example, if consumption is convenient in well-known areas, are POS machines sufficient for some unknown scenic spots? Foreign tourists are very popular in purchasing goods. What about experiencing special services such as massage and acupuncture and moxibustion? There are enough bilingual instructions in Chinese and English, so should more language prompts also be added? These actually require people to think more and further improve them appropriately. So, launching RMB exchange services at subway stations like in Beijing is also a revelation: openness is not just about keeping the door open, but also requires attention to detail and continuous improvement of service quality. To make tourists feel familiar when they see each square character here, and not panic when facing various black technologies. In the considerate service, they can enjoy themselves and return with a full load.(outlook new era)