I got Siobhan to draw lots of these faces and then write down next to them exactly what they meant. I kept the piece the piece of paper in my pocket and took it out when I didn’t understand what someone was saying. But it was very difficult to decide which of the diagrams was most like the face they were making because people’s faces move very quickly.

When I told Siobhan that I was doing this, she got out a pencil and another piece of paper and said it probably made people feel very