One hand we are unique, every one of us. This uniqueness manifests itself visually in the face, first of all. At the same time it is also in the face, we carry the same features and senses, which belong to all of us: eyes, nose, ears, smell and touching (touching is everywhere, but the thin skin of the face makes it especially touching). If we see a lot of selfies, we will see a lot of faces. On one hand unique, on the other stereotyped. They are not only stereotyped because of features mentioned, put because we tend to seek the same expression, which is the currency right now.