Clearly the greatest song from the Eagles and a key to discovering lies in an interview. Forbes.com covers fascinating topic with a startling point at the beginning of the article:
…they only work about 80% of the time, according to the American Polygraph Association.
That is far lower than I expected. Clearly, it is probably better than the vast majority of people, but I thought the number would be north of 90% for sure.
Ah, but here are the fun “tells” for interviewers to use:
Liars often give short or one-word responses to questions, while truth tellers are more likely to flesh out their answers.
And this:
Skilled liars don’t break a sweat, but the rest of us get a little fidgety. Four possible giveaways: shifty eyes, higher vocal pitch, perspiration and heavier breathing.
Here is a great read:
Liars are often reluctant to admit ordinary storytelling mistakes. When honest people tell stories, they may realize partway through that they left out some details and would unselfconsciously backtrack to fill in holes. They also may realize a previous statement wasn’t quite right, and go back and explain further. Liars, on the other hand, “are worried that someone might catch them in a lie and are reluctant to admit to such ordinary imperfections,” says DePaulo.
Lastly:
Yet another clue: imprecise pronouns. To psychologically distance themselves from a lie, people often pepper their tales with second- and third-person pronouns like “you,” “we” and “they,” says Hancock. Liars are also more likely to ask that questions be repeated and begin responses with phrases like, “to tell you the truth,” and “to be perfectly honest,” says Reid.
May I suggest you read the entire article?