Selling in its most simple form is nothing more than a transfer of feelings. The single most important emotion in selling, is enthusiasm. Yes, it's more important than sales skills, listening skills, or even product knowledge. Enthusiasm is a sign of belief that your prospects and customers can sense and feel. If you can get them as enthusiastic as you are about your product or service, they will buy. The more excited you are about what you're offering, the more excited your prospects will become.
Best sales effort ever. See video of Mr. Rogers before congress. Twenty million dollar sale!