Legs. When asked why they cross their legs, most people say they do so for comfort. Although they are being truthful, they are only partially correct. If you have ever crossed your legs for a long period of time, you know that this position can become painfully uncomfortable.
Crossing your legs can have a devastating effect on a negotiation. In a study described in How to Read a Person Like a Book, Gerard I. Nierenberg and Henry H. Calero found after videotaping 2,000 transactions that no sales were made by people who had their legs crossed.