Make sure that you are clear on what your career goals are, and be specific. Are you looking for more responsibility? Room for advancement? A higher pay grade? Talk to the hiring manager about what you are hoping to achieve within their company. Be sure to discuss what you will give back in return.
"My primary goal in joining your organization is to work with a team of mentors and well established leaders. I would like to advance my knowledge in the industry and feel that this is the best place for me to do so."