I already apologized, and if I didn’t, I do it now. Believe it or not, there are cases when the face of people, European, Asian, Americans, or whatever, are inscrutable because they may be experts at hiding their emotions. More details in my posts above. I’ve never been to Asia, I’ve never traveled outside America and Europe. I mentioned specifically Asians because I’ve watched many Chinese and Japanese cartoons and I’ve also seen many images of people whose face I can’t recognize. And, I tend to notice, the face of very famous people are not photographed in candid shots. They are more in pose. But I realize I’ll never convince you with words, so I’ll make a real example here.
Compare this photo:
https://pp.userapi.com/w3KYe_ANfvvfgm0mNppu7eYwOtuYRoXcZ3MM6Q/T9v1wYbS570.jpg?ava=1
With this one:
https://a1-images.myspacecdn.com/images02/147/aaa1e6e78de346b39023028e73e49aed/300x300.jpg
In the last one, can you tell me what the person is thinking or feeling?