This is from a post I made in the original forum:
Since job interviews are very one-sided (that is, the applicant has very little control over what happens), I think job interviewers need to abide by the following:
1) Be on time for the interview. If you tell the applicant 10:00, that's when the interview should start. Have your copy of their resume, cover letter, and any other paperwork on the applicant on hand.
2) Let the applicant know whether or not they need to pay for parking, get parking tickets validated, go through security, bring photo IDs or any other documents with them, fill out forms, take tests, etc. ahead of the interview, let the applicant know who they are meeting with, and give good directions to your office, so they can plan properly.
3) Let security and the receptionist know that you have an appointment with the applicant.
4) Greet the applicant properly. Shake hands firmly (but not too hard), introduce yourself by name, offer them your business card and any company literature, and escort them to the door when the interview is over.
5) *Do not take calls, answer E-mails or IMs, or allow your co-workers to interrupt the interview unless it is a major emergency.* (This is one of my pet peeves.) Stay focused on the interview.
6) If the interview is over the phone, find out if this is a good time for the applicant to talk before starting in with interview questions. If it isn't, make an appointment with them for the phone interview.
7) Follow up with the applicant after the interview as soon as someone has been hired for the position. *No one likes to be kept waiting to know how they did.*