Wes,
Thanks for the encouragement. Though I've never done an interview of any kind before, I'm going to take them very seriously as I know they can make all the difference!
Make sure you read through some interview tips, but here are the basics.
1) When you shake their hands, give a nice firm hand shake. Don't try to destroy their hand but don't give a limp shake either. I believe etiquette is 3 shakes of the hand.
2) Do not sit down until they ask you to. You are their guest so they will make sure you are comfortable but don't take anything for granted. This is business, not your personal crowd.
3) Sit up and do not slouch in your chair..i.e...shoulder back and sitting tall. If you are sitting at a table, rest your arms in front of you and interlock your fingers. This will prevent you from talking with your hands and distracting your interviewer.
4) Speak slow, clear, and loud enough for all to hear you, but not to where you are overpowering everyone in the room. Make eye contact, as this is how you engage people. Do not stare them down, but good eye contact is part of good communication...which is a two way street.
5) Do some research on the programs and schools before your interview so you can ask questions. This shows you are genuinely interested in attending their school and not just there because they are a pharmacy school.
The idea you have to convey to the interviewer is that you are cool and calm under pressure, that you can handle stress, that you are clear and concise in your answers, and that you handle yourself well. This is a tip that helps me out when interviewing. If the interviewer is older, just remember that he is someone else's dad so there is no reason to tighten up and stress out. And if they are closer to your age, maybe he is someone elses big brother or someone that might be found in your circle of friends. The point is that the interviewer is a human and not some godlike figure. You don't want to conduct yourself casually, so remember your manners and etiquette. Also, the single most important thing you do can is be prepared for questions. It might be a good idea to have someone do mock interviews with you.