The Socratic Method
The Socratic Method means to simply, ask a lot of questions. The more questions you ask of another person and listen closely to the answers, the more the person will like you and be more open to being influenced by you.
The more questions you ask during a negotiation and the more open you appear to see things from another person’s point of view. You’ll find that they will be more reasonable as well. They will follow the law of reciprocity.