A few weeks ago I was at a restaurant with my parents. Like every other modern family, we buried our faces in our smartphones after the waiter was done taking our order. Having read that constant phone face-burial can cause neck problems, I habitually raised my head to stretch my neck, before going back into aforementioned phone face-burial. But before that, I glanced at three men sitting at the table next to ours. At the first sight, it was any three middle-aged friends reuniting over beer and chicken. It was then that I noticed something strange about them. They were not using words, instead their hands and faces to talk to each other. Noticing the number of empty beer mugs on their table, I figured this could be a novel drinking game they were playing - no words, only dumb charades. But the sight intrigued me so much I could not take my eyes away from them. Thanks to the humdrum service of the restaurant, I still had about half an hour before my food could take my eyes and ears