Having questions prepared isn't enough
Although you may have a few questions prepared it would be important that you listen well to what is said during an interview so you can follow it up with questions that are related. You would learn more about the points on which the interviewers emphasize. Listening well will help you learn facts about the company so you can ask questions around it. This will show the interviewer that you are interested in learning more about the company, the problems that it faces and want to learn more about what you can do to help solve those issues if you are chosen for the position that you are interviewing for.
Put Your Antenna Up
If you listen well to the interviewer you may pick up subtle points about the work culture and the environment of the company that you may otherwise not know about. The job may be stressful and may require long hours and you may not be willing to put in that many hours. However, unless you listen really well and pick up subtle points you would not be able to know that. Based on the points you pick up you can ask a series of questions which will provide you more information about the job so you can make an informed decision about whether or not you would be comfortable taking it up. It is important to not only listen well but to also read between the lines. This will allow you to gather information which you wouldn't have been able to otherwise.
If you are only thinking about answering the questions of the interviewer you will miss a big opportunity to collect information about what you would getting into if you take the position. You will also miss out on the chance to impress an interviewer the way very few people can. Listening will tell an interviewer that you have been listening intently what was being said as well as things which haven't been said. Some of the smartest questions you could ask will come only from listening.
There aren't many other good ways of making an impact on a prospective employer than by listening well and retaining details of what was said and then using those points to well-crafted observations and questions. Smart employees will view curiosity as a very valuable trait. You will also be able to emphasize your curiosity through listening. Turn up your intuitive and listening skills and pick up the subtle points. You may be surprised by all that you learn.