Keep your cool in the face of your most difficult customers. When faced with a demanding or unrealistic client, it’s important to listen and listen patiently. Remember to show empathy. You can demonstrate empathy through eye contact, body language and smaller verbal cues showing engagement and concern. Next, fix the problem at hand immediately. If you can provide an immediate response to the problem at hand, do it. Finally, remember to be forthright and realistic to all customers. They will appreciate your honesty and come to understand that you are doing your best to help them.