A good customer service is the method by which your organization carries out its services or products in a way that lets the customer to access them in the most resourceful, fair, cost effective, and humanly satisfying and pleasurable manner possible.
Someone who is nice and acts like they care about the customer. Show you care about your job. Also try to know what your doing. I went to buy some hiking boots and the lady looked so clueless. It was kind of frustrating.