You may think of professionalism in terms of how you're dressed for client appointments, whether you respond to calls and emails in a timely manner, or what you say out loud when you're touring a home. But your interactions with clients aren't the only consideration when thinking about your level of professionalism. What about how you work with cooperating agents or take advice from brokers and mentors? Two REALTORS® who have helped develop the Commitment to Excellence (C2EX) platform, which tests real estate pros' knowledge of professional standards, discuss what kind of effect your dealings with your colleagues can have on your reputation.