1. Reading: Read a wide range of books, including literature, philosophy, history, science, etc. Classic works and excellent works help to broaden our horizons and increase our knowledge reserves.

2. Learn new skills: learn new skills or study areas of interest, such as music, painting, writing, programming, etc. Mastering new skills is helpful to broaden thinking, cultivate creativity and problem-solving ability.

3. Participate in discussions and debates: actively participate in classroom discussions, community activities or organize debates, exchange ideas and opinions with others, and understand different viewpoints and ways of thinking.

4. Diversification of friends: establish contacts with people from different backgrounds and occupations, and exchange and share experiences extensively. In this way, we can get in touch with more ways of thinking and viewpoints and promote the diversification of cognition.

5. Actively participate in practical activities: participate in field trips, internships, volunteer activities, etc. Experience different environments and people personally, and enrich your life experience and social cognition.

6. Use Internet resources: use Internet search engines, academic databases and other tools to obtain knowledge and information in various fields. At the same time, we should be good at distinguishing the authenticity and credibility of information.

7. Reflection and thinking: often reflect on your own way of thinking, prejudice and inherent concepts, constantly challenge your own thinking mode, and cultivate critical thinking and logical thinking ability.

The most important thing is to keep curiosity and thirst for knowledge, keep learning and thinking, and constantly improve your cognitive level in practice.