Selling is all about helping people to buy. The more you try to sell the less people will likely to buy. Never sell, help people make good decisions. People buy for variety of reasons. So it is your responsibility to meet their expectations.
People donot buy a product or service.
They buy what a product or service can do for them. People donot buy features they buy benefits. As a salesperson you should know the following 1. Know what your product can do. Believe in what you are selling.