If you’ve been following Dr. Ekman’s work, you’ll know there is no single, definitive sign that we can count on to let us know with absolute certainty that someone is lying.
Instead, deception detection is a more complex and nuanced process, gathering possible clues to deceit, and investigating further.
This often involves observing one’s behavior to establish a “baseline”, and collecting information about any deviation from this norm, in the form of “hot spots”.
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