We are what we do. We choose professions that suit our identity, and then those professions enhance our identity.

On initial contact, a sociopath will often test other people's empathy, so questions geared towards discovering if you are highly empathic or not should ring alarm bells.

If you want to catch someone in a lie, you'll raise your odds in the afternoons, as most people are more likely to cheat or lie then as opposed to the morning. Christie Nicholson reports