Make sure his character is correct, which can be known from his acquaintances.
4. Ensure a high safety rate from the place and route of drinking tea.
Leave yourself a way out, such as when your best friend will call you. When you answer the phone, you will find an excuse to say that your friend is coming to pick you up, so you can leave or continue chatting.
6. It's ok if you can bring a friend with you.
Ha ha! Although we should guard against people, we should not be too cautious. Maybe I have something to say to you. For example, it is possible that an uncle wants to introduce his son, or introduce you to the children of acquaintances. Haha, just kidding. Anyway, be careful and be prepared for safety.