Radio 4 in Four - How you can spot a fake smile - ÃÛÑ¿´«Ã½ Sounds
Radio 4 in Four - How you can spot a fake smile - ÃÛÑ¿´«Ã½ Sounds
How you can spot a fake smile
Humans are notoriously bad at picking up fake smiles, because we tend to look at mouths.
