1. Social media: Nowadays, social media has become one of the main platforms for people to show their lives. You can get some information about their lives and thoughts by searching their accounts or usernames on major social media or following their blogs, Weibo and Twitter.
2. Intimacy: If you know people around the character, such as friends, colleagues or family members, you can learn about the character's living habits, daily behaviors, hobbies and so on through them, so as to better understand them.
3. Interview: You can learn about their work, life and thoughts by interviewing this person. Face-to-face interview, telephone interview and online video interview can be used.
4. Literature: You can get some information about this character's life and thoughts by consulting biographies, autobiographies, articles, speeches and other documents.
5. Observation: If you and this person are in the same environment, such as the same workplace and living area, you can better understand their lives by observing their words and deeds, working methods and ways of interacting with others. But you need to pay attention to respect privacy and keep a proper distance.
In a word, if you want to know the life of a man of medium height, you need to use a variety of methods comprehensively, and you need to be cautious and respectful to avoid invading the privacy of others.