Always put yourself in the customer’s shoes.
You can do this by attentive listening to their needs, trying out what you sell, and think carefully about any issues so that you can raise and resolve these before the customer can. By understanding and caring about the customer’s needs, you show that you are passionate and honest about what you sell. You will not be selling the item, but the solution to their problems. While this even may involve selling a lesser priced option that is better for the buyer, they will remember and appreciate your sales candor and become your loyal returning customers or clients. Building trust combined with knowledge of your product and of your customer will naturally boost both the amount you sell and how effective you sell it.