Interview technique.

Friend of mine is going for a job interview, and asked me if I had any tips.  I've interviewed more people than I care to think about, and the worst thing as an interviewer is when you realise that the person you are interviewing is trying to present themselves as what they think you are looking for.  It's frustrating because (a) you know they're putting on an act, so you can't be sure what they are really like, and (b) because behind the mask they are putting on, they just might in fact be the very person you are looking for, but can you take that chance?  So my advice to my friend, and to anybody else out there facing an interview, is quite simply - be yourself.