12 Ways To Spot A Liar

1. A fake smile.
2. Unusual response time.
3. Verbal cues.
4. Under or over production of saliva.
5. Pupil dilation.
6. Change in blink rate.
7. Foot movements.
8. Face touching.
9. Incongruence.
10. Changes in gestures.
11. Micro-expressions.
12. The quick-check glance.

References:

https://www.youtube.com/watch?v=zIAPHZKCyuE
https://www.forbes.com/sites/carolkinseygoman/2012/04/11/12-ways-to-spot-a-liar-at-work/2/#430c6640743c