1. detect a lair 

usually pay attention to their body language

  1. Do the handshake test
  2. Check the hand gestures
  3. Watch for any gestures they make towards their face.
  4. Detect a liar based on checking hand and arm movements
  5. Check the eyes
  6. Check for strange behavior
  7. Look at jiggling of the feet
  8. Look at facial flushing
  9. Pay attention when people seem to be giving you mixed signals

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