Write your questions down and take them to your interview. Intelligent questions indicate genuine interest and preparation. Ask the questions of everyone with whom you interview. Different perspectives will give you a better understanding of the practice or institution.
If you genuinely like what you see and hear, tell the interviewer so. Express any major concerns you have. Their responses may be enlightening. Show interest in your interviewer as an individual and potential colleague. A more human approach will help the interviewer become comfortable with you as a person. This may translate to a higher degree of confidence that you would fit into their organization well.
Never close the door on an opportunity-always conduct yourself as if you were determined to get the position you are discussing. It is better to receive an offer that you do not want than to want an offer that you do not receive.
Never leave the interview without a clear understanding of the next step. Will they contact you either way, or will you only be contacted if an offer is extended? In what time frame will they make a decision? Will they contact you directly or through a recruiter? Is there someone whom you may call if by the deadline you have not been informed of his or her decision?
If during the interview you indicated that you would provide the interviewer with any additional information, such as additional references, copies of published papers, or professional documentation, be sure to do so in a timely manner.