Above all, be sincere, and project your positive attitude about the job and life in general.
It has become increasingly hard to get these interviews, so try to help make good use of yours and the interviewer's time by answering questions concisely.
GUEST'S ANSWER: Joe Hight, The Oklahoman and NewsOK director of information and development: Congratulations on reaching the second and perhaps most important stage of the process: the interview! (The first stage was impressing the potential employer with your resume and related materials.) You're doing the right thing in bringing an updated resume and researching the company beforehand.
You need to dress as nice as the people who will be interviewing you, or even nicer. If you know someone at the company, ask what the typical dress is there. Remember that you may be interviewing with more than one person, so your dress and demeanor are important for first impressions.
When researching, also rehearse questions that you will ask and be prepared to ask them during the interview. Be enthusiastic and confident, but not superficial or arrogant. Engage the interviewers in conversations and seek to relate with them, while answering the questions that are being asked. Show them why you are the best match for the position.
Also, don't ask about compensation unless it's volunteered during the interview. That could be the third and final stage when you are offered the job and before you accept. Good luck!
Callie Gordon is twenty-something, Lillie-Beth Brinkman is in her 40s, and social columnist Helen Ford Wallace is 60-plus. You'll also find a guest answer. To ask an etiquette question, email firstname.lastname@example.org. For more 20-40-60 etiquette, go to blog.newsok.com/partiesextra.