Be yourself, be professional. Don't get sucked into a conversation where they try to treat you like a "good ole boy", because it is a common tactic.
That way they get your guard down and it almost feels like a conversation in a bar and they can extract all sorts of info from you.
Always remember this is for a job, not a beer with the guys.
Answer only what you are asked and don't volunteer any more information. Some ppl start to talk and it is like a waterfall, they say things they don't realize.
Oh yeah, there is one common tactic that ALL interviewers use (me included), and that is the creative use of silence.
There will be a time there is a silence in the conversation. You've answered their question or they don't have any more and are waiting for the interviewee to hang themselves. Let the silence go on and let them be the ones to break it. Don't be tempted to break it yourself.
If you skip thru anything on my post, don't skip this:
Most interviewers know within 3 to 5 minutes if they are going to hire a person.They wouldn't have called you for an interview if they weren't interested. After that 5 minutes, they are just waiting for you to say something that will change their mind.
If you have the qualifications, dress well (no jeans. wear dress pants, shirt and tie minimum), have a good attitude, don't say anything stupid, you'll probably land the job.
I conduct interviews myself and know how things work.
...and if you do land it, let us know. We'll celebrate with a 31 gun salute....
...aiming at you, of course