Trying to make others misunderstand their own mental state is not a positive and healthy behavior. It may cause a series of complex and negative situations, such as destroying interpersonal relationships and hindering sincere communication. This is not recommended. But if you have to do this for some special reason, such as in a specific role-playing situation, you can： 1. **Control expressions**: Deliberately show facial expressions that are inconsistent with your inner thoughts, such as being nervous but calm, and smiling with anxiety. 2. **Adjust body language**: Make actions that are contrary to your true emotional intentions, such as striding with your head held high in fear, or pretending to be tired and procrastinating in a relaxed heart. 3. **Choose words**: Deliberately use some misleading language to describe one's feelings or thoughts, avoiding directly expressing one's true psychology. 4. **Abnormal behavioral performance**: For example, usually extroverted suddenly becomes very withdrawn, or has been negative and suddenly behaves too enthusiastically and positively. Once again, it is emphasized that this kind of behavior is not conducive to the long-term development of good interpersonal relationships and personal mental health, and we should try our best to be sincere and frank.