This document discusses social influence and persuasion. It defines conformity, compliance and obedience. It outlines factors that affect conformity, including cohesiveness, group size, social norms, and situational norms. It also defines compliance and discusses six principles of influence: reciprocation, commitment, social proof, liking, authority, and scarcity. The document concludes by asking the reader to discuss examples of these principles at work and how they could use new "jujitsu skills".