Persuasion techniques are strategies used to influence people's thoughts, feelings, or behaviors. Common methods include appeal to emotion, where feelings are used to sway opinions, and social proof, which relies on the actions or beliefs of others to encourage conformity. Another technique is reciprocity, where giving something to someone makes them feel obligated to return the favor. Additionally, authority can be persuasive, as people tend to trust and follow the guidance of experts or figures of authority. Understanding these techniques can help individuals recognize and respond to persuasive messages effectively.