Each situation where there is a sale is unique. It is influenced by the products or services are sold , the conditions of sale, the buyer and the characteristics of the seller . It provides intelligent man who was endowed with her ability to understand faster and better problem, to seize what is essential to it and find its solution based on previous experience . Sociability is for the salesperson an essential quality because every day he can meet other people . If not a sociable person , who likes to communicate , interact with peers , it will be very difficult to convince potential customers.