To improve his reasoning ability, he could consider the following aspects: 1. Read widely: Reading can expand the field of knowledge and increase vocabulary. It can also cultivate logical thinking and reasoning skills. When reading, you can try to infer through keywords, clues, inferences, and other methods. 2. Practice thinking games: thinking games can train logical thinking and reasoning skills. For example, playing digital puzzles, maze games, and so on. 3. Think more and summarize more: In daily life, we often encounter various problems that require reasoning. Therefore, he had to think more and accumulate more experience to make better deductions. Learning reasoning skills: Reasoning skills are an important means to improve reasoning ability. For example, he could use induction reasoning, deduction reasoning, analogy reasoning, and other methods to make inferences. 5. Increase observational skills: observational skills are the foundation of reasoning. He could make inferences and inferences by observing other people's words, actions, and environmental details. To improve one's reasoning ability, one needed to constantly learn and practice to improve one's logical thinking and reasoning ability in many ways.