When observing successful cases of extreme behavior, we can find that the techniques and methods to influence public sentiment may include: 1. **Media propaganda and manipulation**: Using traditional media and social media platforms to widely disseminate specific views or information and influence public opinion through repeated exposure. 2. **Emotional language**: Using highly inflammatory language to emphasize emotions such as fear, anger or sadness to evoke strong emotional reactions from the public. 3. **Information bombardment**: Through continuous and large-scale information release, the public's rational thinking ability is overwhelmed, causing fatigue in the flood of information, and ultimately affecting their attitudes or behaviors. 4. **Social networks and group effects**: Using the communication characteristics of social networks to amplify certain views through group effects, making individuals more susceptible to group opinions. 5. **Visual impact**: Using strong visual effects (such as pictures and videos) to directly stimulate the audience's sensory feelings, deepen impressions and thus influence emotions. 6. **Storytelling**: Telling moving personal stories to reflect a certain view or position from a small perspective, making it more humane and persuasive. 7. **Expert effect**: Introducing the opinions of authoritative figures or experts to enhance the credibility of information and influence the public's views on an event. 8. **Emotional resonance**: Resonating with the general emotions or social emotions of the public, such as emphasizing common threats or interests, to narrow the psychological distance with the audience. These techniques and methods are often used in combination to achieve a stronger influence effect. It is important that the public maintains critical thinking and is cautious about the source of information to avoid being manipulated.