Why do people lie?
Humans lie to preserve themselves when they feel threatened, and to dominate (fulfill personal interests). Lying is a part of the natural mammalian evolutionary process. Studies have shown that humans start telling lies as early as two-three years of age.
We have all heard of white and black lies. White lies do not harm anyone, whereas black lies may. A study has categorized lies further into what they termed as “gray” and “red” lies. Gray lies benefit both the parties, that is, the liar and the people being lied to. On the other hand, red lies cause harm/loss to both the parties in question.
So how are we supposed to detect them then? You can try these:
10. Build a rapport to make them feel comfortable
This is the essential first step, listen more and speak less. Building a good rapport will give astonishing results, and you will soon find that the suspect is confessing a lot many secrets you have not started asking about.
A good light-hearted conversation will also break ice and make the situation less stressful. When at peace, slowly throw at them a few specific questions and note the reaction, and consider this as the benchmark reaction. This benchmark will act as a standard to compare future reactions with, to the same questions but next time under stress.