Influence techniques are strategies used to change or guide people's thoughts, feelings, or behaviors. These methods can be found in various fields, including psychology, marketing, and negotiation. Common techniques include reciprocity, where giving something can lead to receiving something in return, and social proof, which relies on the idea that people tend to follow the actions of others. Another popular technique is authority, where individuals are more likely to comply with requests from someone perceived as an expert. Additionally, scarcity creates a sense of urgency, making people more likely to act when they believe an opportunity is limited. Understanding these techniques can enhance communication and persuasion skills.