Went to the U.K. this spring. At customs, they look you in the eye and ask all sorts of questions. Very friendly about it. They are reading body language. Like Israel does.
The show Brain Games says much of our perception is based on survival instinct. They show about 16 faces for 15 or so seconds. Then they ask “How many are happy?” I think about 50% get it right. Then they ask “How many are angry?” About 90% do!
Reading body language is a very important tool. Are our millennial learning this?
For the most part they aren't. They are so self absorbed as to be ridiculous.