Finally, leave time at the end of the interview for the applicant to ask questions -- and pay attention to what he or she asks. This is the time when applicants can really show they have done their homework and researched your company or, that all they care about is what they can get out of the job.
End the interview by letting the candidate know what to expect next. How much longer will you be interviewing? When can they expect to hear from you? You are dealing with other people's livelihoods, so the week that you take to finish your interviews can seem like an eternity to them. Show some consideration by keeping them informed.