1. Hobbies: Asking about each other's hobbies is a good start. You can ask them what they usually like to do, their favorite movies, music and books, or if they have any special hobbies and activities.

2. Work and occupation: It is a common topic to ask each other about occupation and work experience. Knowing each other's professional background and career development can help you better understand their lives and interests.

3. Family and background: Asking about each other's family and background is also a good topic. You can know their family members, growing environment and cultural background, which is helpful to better understand each other's values and outlook on life.

4. Travel and adventure: Ask if the other person has been to any interesting places or had any special travel experiences. Travel and adventure are good topics for you to share your experiences and interests.

5. Future goals and plans: Ask each other about their future goals and plans, and learn about their ideals and pursuits. This can be about career, family, personal growth or other goals.

6. Mutual values and concepts: It is very important to understand each other's values and concepts, because it is related to whether you agree with the core values. You can ask each other about family, friendship, responsibility, etc.

7. Humorous and relaxed topics: keep a relaxed and happy atmosphere, say some humorous and interesting topics, and relieve tension and embarrassment.

It is important to keep the conversation natural and smooth, and try to avoid awkward silence. At the same time, we should also pay attention to each other's reactions and expressions in order to further deepen communication and establish contact.