1. First, to book tickets in Tsinghua University, you need to open the WeChat APP on your mobile phone, click to enter the main interface, search for "Tsinghua University" in the search box, and click to enter the official WeChat account interface.
2. Secondly, click "Visit Tsinghua" and click on personal appointment.
3. Finally, carry out real-name authentication, select the date, and click make an appointment.