What factors determine the success or failure of negotiations? Does the other side of the table know about us what we know about ourselves? What is our actual strength and negotiating position? What does the other side see? What are the goals and motives of our negotiating partners? What role does our appearance, behavior, clothing, tone of voice, gestures or facial expressions play? Finally, how to arouse trust, sympathy, build authority, or create the conviction of one’s own determination and decisiveness?