Great salesmen are always in a good mood, never negative, never criticize, never go off on random tangents and know what the other person is going to say even before they say it. They can tell immediately how a target market will react to anything in a product or offering. It's like they can easily put themselves in the other person's mindset to understand their gut emotional reaction to things. I only dream of being that good. The best I can do is to clumsily emulate it, but it requires concentration to pay attention to everything, it's like speaking a foreign language but never quite thinking in it.