The National Association of REALTORS® is planning to roll out a program later this year to help you test how well you stack up on 11 core competencies in the real estate profession. Courteousness is one of them—transactions can succeed or fail, in part, due to how well you and another agent communicate and cooperate. Few things are more frustrating than working with an agent who doesn’t strive for the same level of professionalism as you.