You know what I notice and what still baffkes e after all those years? How hard it is to observe a pucture and describe what is seen and felt.
I read the weirdest rgings like: look at the happy faces of my childen and a picture of two extremely unhappy children are shown.
I notice it is hard to see and explain expressions which makes me wonder if this is also cultural. Is it for example impossible for black people to recognize a smiling, happyor concerned face if it comes to white people.
I notice the same for animal behaviour. I was taught Asians see (literally) different but I doubt it unless I share their eyes.