By observing successful extreme behavior cases, we can summarize some techniques and methods to influence public sentiment. These methods are mainly connected to the public's emotions, values and cognitive methods through the principles of psychology and communication. The following are some common techniques and methods: 1. **Emotional appeal**: By telling touching stories or real cases, people can resonate with each other. People are more likely to identify and sympathize with emotional stories, which will affect their attitudes and behaviors. 2. **Social media communication**: Use social media platforms to quickly spread information and create topic popularity. Social media can gather a lot of attention in an instant and amplify the influence of information. 3. **Visual communication**: Use visual elements such as images and videos to enhance the intuitiveness and appeal of information. Visual content often grabs people's attention better than text. 4. **Celebrity effect**: Use the influence of celebrities or public figures to convey a certain point of view or behavior. Celebrity endorsements can enhance the public's recognition of a certain behavior or product. 5. **Group pressure**: By creating a certain "trend" or "trend direction", the public feels the pressure to participate in or support a certain behavior, stimulating the herd mentality. 6. **Scarcity and urgency**: Use scarcity (such as limited edition) and urgency (such as limited-time events) to prompt the public to respond quickly, stimulate anxiety and motivation. 7. **Contrast and opposition**: By contrasting extreme behaviors with normal or negative behaviors, emphasize their positive effects, thereby gaining public support and understanding. 8. **Incentives and rewards**: Provide some form of reward (such as cash, physical objects, honors) to motivate the public to participate in a certain behavior to enhance interactivity and enthusiasm. 9. **Situation setting**: Create specific scenes or situations to influence people's perceptions and behaviors, such as direct interaction and experience through activities, exhibitions, etc. 10. **Education and information dissemination**: Provide detailed information and educational content to help the public better understand the meaning and importance of a certain behavior, thereby guiding their emotions and attitudes. Through the above techniques and methods, public emotions can be effectively stimulated and guided to promote the realization of certain extreme behaviors. However, caution is needed when using these techniques to avoid misleading and manipulating public emotions.