How to be a human lie detector

Do you know when someone is lying? Can you tell? Lisa Mitchell, Certified Body Language Trainer, Power Body Language, shares a few secrets on what to look for.

• Human lie detection is a delicate science, and a little bit art. Most people are about 54% accurate with no science when they are just guessing, basically a coin flip. With body language science training, it’s up to 90% accurate in detecting deception
• We are lied to as many as 200 times a day, 2-3 time per 10 minute conversation typically
• 3 types of lies (for our own benefit, for someone else’s benefit, or for both our own and someone else’s benefit)
• Our bodies hate it when we lie and try to protect us from negative consequences
• Human detection is a 7-step process which focuses heavily on establishing baseline behaviors (physical, audio, facial expressions), noting variance to baselines under emotional situations, and then asking targeted questions where you are looking for deception cues that are contrary to baseline behavior.
• Look for the 17 Statistical cues of deception. Some examples include an increased blink rate, changes in vocal tone or cadence, one sided shoulder shrug, incongruent head nodding, blocking behaviors, touching of the nose (blood vessels in the nose swell when we are deceptive)
• 1 “red flag” is not enough to declare deception. Clusters of 3 or more lying cues indicate deception is present in most cases.
• Additional confirmation or validation should be completed if cluster of lying cues is present, assume the best until you can prove the worst with scientific certainty.

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