Spot a Liar in 20 Seconds

According to this new study from the University of California, Berkeley, all it takes is 20 seconds to decide whether or not a stranger is trustworthy.

They even test its connection to our gene receptor.

These signs include:

1. Inconsistent behavior
2. A steady gaze
3. Not enough mouth
4. A quick smile

So the next time somebody praises you, these are the indicators.

How to spot a liar in 20 seconds flat.