Do your homework - Recruiters are impressed when candidates take the time to research and learn more about their organization. Thoroughly review their web site and learn as much as you can. Being prepared will also minimize your anxiety.
Make an impact - Dress for the occasion. The rule is: When in doubt, overdress. Recent workplace trends have approved business-casual attire, but it's still appropriate to wear a business suit to an interview. If you mean business, show them! And remember... it's not always what you say but how you present yourself that makes an impression. Be sure to shake hands firmly and maintain eye contact throughout the interview. Sit up in your chair and stay focused. If your mind starts to wander, it shows.
Be confident - Composure in the business world is crucial. Your interview is a good measurement of how you handle pressure. You don't want to appear too nervous. At the same time, you don't want to be too relaxed. Maintain an appropriate level of professionalism without being unapproachable. The best advice is to be yourself. If you are an outgoing, likeable person, let that come through in your interview. Recruiters are looking for colleagues who will thrive in their team-based environment.
Ask questions - When you want to learn more about who they are and what they do, it lets them know you're interested. Depending on what you ask, it may also prove you have done your homework. Before the interview, make sure you've prepared a list of questions that the Recruiter may not have addressed on their web site.
Sell yourself - Your qualifications got you in the door. Make sure to speak confidently about any experiences you've had in the workplace, during volunteer opportunities, and in the classroom. Specific examples of how you've contributed to an organization or learned something exciting are of particular interest to them. The Recruiter sees potential in you, so be sure to sell yourself by promoting your skills and abilities.
Get clarification - If you don't understand a question, don't hesitate to ask the Recruiter to repeat it. You have a better chance of giving your best answer if you know exactly what was asked. If you can't think of an answer at that moment, don't be hesitant to ask to come back to the question later.