How can you tell a person is lying? Can you know with certainty someone is being untruthful? According to former FBI agent Joe Navarro, there’s no definitive behavioral response that indicates someone is lying. However, as a general rule of thumb, someone who is lying will display insecure behaviors because deception takes mental effort and causes stress. With this in mind, here are some tips on how to detect a lie.
How to Detect a Lie: 5 Tips From a Former FBI Agent










