Judging by appearance

Judging a person by appearance or short-interaction reflects a short future orientation. Most animals in this world judge other animals in such way. As human evolving above animals, our long term memory and future orientation become stronger. But different societies demanding on such ability is quite different depending on the stage of civilization. As hunter-gatherers, such demand is weak, so it is nature to judge by appearance. In sophisticated civilization with longer life expectancy, future-orientation is critical for the success. In such sophisticated environment, the game went up with hiding your strength to deceive your competition replacing superficial bluffing. Today, a lot of such cultural conflicts are due to different stages of civilization brought together by globalization. In East Asian (or oriental) culture, in your face bluffing or showing off is always considered to be primitive as animals.

Without data, it is just a personal opinion which is subject to future research to prove. Any people in research field feel free to use my original idea to investigate.