When it comes to expressing emotions, human faces have a lot to say. Without speaking a word, we can signal our disgust to those around us with pursed lips and a furrowed brow. Our joy is expressed ...

Now you can put a price on a smile. People in Japan who have become accustomed to wearing a face mask have turned to the help of a professional — to learn to smile again. After the Japanese government ...

This work was carried out as part of an ongoing collaboration on the role that non verbal displays may have in political settings with Professor Patrick A. Stewart (University of Arkansas, USA). Erik ...