Persuasiveness

Read this: Persuasiveness and 6 Weapons of Influence

1. Reciprocation: we try to repay what another person has provided us
2. Commitment and consistency: we desire to be consistent with what we have already done
3. Social proof: we tend to rely on what other people are doing to determine our own actions
4. Liking: we tend to go along with and follow people we like
5. Authority: we feel a sense of duty to follow someone who has authority
6. Scarcity: opportunities seem more valuable to us when their availability is limited

To read: "Influence: The Psychology of Persuasion by Robert Cialdini"

Source: More on Persuasiveness, Guy Kawasaki