A “like” is an expression of value appreciation or desire that the Black Swan Group refers to as a positive. A “dislike” is a lack of appreciation, aversion or reluctance, to or for something. It is what we refer to as a negative. The positive or negative emotion that the counterpart attaches to a term or a dynamic is a clue as to the valuation they have put on it. The recognition, articulation, and exchange of values are what negotiation is all about.