How to Negotiate Effectively

As far as I know, scientifically speaking, there is no validated way to detect lies. In fact, from that point of view, lie detection is sort of a non issue. Apart from opening my minds to really understand the other person, in my experience as a negotiator is always very important to manage expectations. So those two in my experience are in terms of being successful in negotiation are most important. And sometimes I see something happening on the other side of the table, apart from the baseline, I seeSomething happening in the face that is different. Well, that might be interesting, but I have not the beginning of understanding what it could mean. It could mean anything. so I can only