Every person has their own approach, and the interviewer is trying to learn more about your style. Think about what things you typically do when you begin working for a new client. Do you have a set of questions that you typically like to ask? Do you like to go out for coffee or breakfast to have an informal discussion that allows you to gain an understanding of expectations and to learn more about the person? Do you like to discuss your work style, so your client knows what they can expect from you? Simply share your approach to getting to know your clients and ensuring they are comfortable working around you!