Close the Sale. Selling uses interpersonal skills, courage, determination, charm, knowledge, intelligence, hard work and attention to detail. You may be employing every one of these qualities yet if you’re not focusing them on getting the client’s signature on the order form everything is pointless. At the end of the day, selling is what it is – asking people for money in exchange for goods and services. This can be done ethically and honourably and is the basis of commerce the world over. Sales success is ultimately defined by how much you sell.