People like people who like them; people are interested in people who are interested in them. People will forgive mistakes that you make if they truly think that you care about them. And they are going to be more forgiving when that happens.
As a businessperson, when you think about this saying, “people don’t care about how much you know until they know how much you care,” it is important to understand that the most self-serving thing that you can do for yourself, for your business, and your personal relationships is truly care about the individual that you are talking to. If you will take the attitude that your primary objective is to find out how you can help this person, what you can do for them, what you can do for that customer, and put their needs above your commissions, you are going to find that “people don’t care how much you know until they know how much you care” is going to increase your commissions and improve your relationships.