Leo Benedictus, ‘The movements that betray who you are’, https://www.bbc.com/future/article/20200911-the-hidden-accents-that-betray-who-you-are, BBC Future, BBC (14th September 2020)

People recognise individual voices and faces, and even walking or running styles, without knowing exactly what makes them recognisable. (…) There is already evidence that we read more from body posture than we realise. In a 2012 study, people who were shown photographs of tennis players taken immediately after an important point were much better at knowing whether the player had won or lost from images of their bodies than of their faces. (…) The presence of (…) subtle cues might help to explain the bias that can creep into our thinking about people from different backgrounds. (…) At the very least, when people really want to understand each other, non-verbal accents show us that it’s good to talk.