Rick Gillis is an author/speaker/radio and TV host—all with an emphasis on employment and job search. Rick says that job search is no longer about selection. It’s about preventing elimination! Read more...
Basic courtesy counts for a lot when discussing job search protocol.
Be on time. Be polite. Turn off the cell phone. Focus all your attention on the business at hand. These are all ways of expressing professional courtesy, and should serve as the foundation for everything else you do. This always includes treating the receptionist and any other support staff with the respect they have earned. You just might end up working with them. By the way, I know for a fact lots of jobseekers have not been offered positions specifically because of how they treated the staff prior to interview.
One more point regarding basic courtesy: "Thank Yous" are always heard even if not directly acknowledged. And if it's a note, even better.