Try the mirroring technique.
When in a negotiation it's crucial to get as much information out of the other side as possible. Voss explains that by "mirroring" them and simply repeating three to five keywords in their last sentence, people are forced by nature to repeat themselves in a way that gives more information and clarifies their points. An example:
Person 1: To get someone to tip their hand and clarify, simply repeat the last three to five keywords in their sentence.
Person 2: You repeat the last keywords?
Person 1: Yeah, pretty crazy right? What that does is it causes me to explain my point again from a different angle, revealing more information that could be extremely valuable and also it helps you decipher my true desired outcomes and motivations.
Voss notes it feels extremely awkward when you are doing the mirroring, but insists that the other person almost never notices and actually feels listened to. Voss refers to this as the negotiation "Jedi Mind trick" as he says it works every time and no one knows you're doing it.
Read more [HERE].