Reciprocity: People tend to return favors. If you do something for someone, they are more likely to do something for you in return.
Commitment and Consistency: Once people commit to something, they are more likely to follow through to remain consistent with their commitments.
Social Proof: People look to others to determine how to behave, especially in uncertain situations. If others are doing something, individuals are more likely to do it too.
Authority: People tend to follow the lead of credible, knowledgeable experts.
Liking: People are more likely to be influenced by those they like. Factors such as physical attractiveness, similarity, and praise can increase likability.
Scarcity: People value things more when they perceive them as scarce or limited in availability.
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