Talk about hobbies, entertainment events, movies, sports music, scientific and political events, diplomatic and military literature, calligraphy and painting, and so on. Pay attention to the preferences of friends, try to find the same language, attach to each other appropriately, praise each other's erudition or serenity, or be detached, or positive, or care about state affairs, or know the taste of life, or be elegant and generous. And pay attention to your words and actions to express yourself correctly and objectively, and don't be feminine, flattering, supercilious and so on. You can start from any angle and slowly expand the topic. If necessary, you can inquire in advance according to the importance of your friend's identity to prepare for the chat. Good luck.