We humans spend inordinate amounts of time waiting in line, fiddling our thumbs sipping coffee, bored while waiting at the doctors office. During these times what most do is observe other people, as there is usually nothing else to do. So we judge the actions of people.
What we do is observe their exact movements, nuances to pass the time. What we do is critique those who are in our personal space, in our field of vision.
We instantly decide whether they’re smarter or dumber than us, prettier or more …