The two girls I have in front of me are the ones who are the most well-behaved in the entire group of third graders in Primary school who are now surrounding me. They were the first to sit down, further away from the rest, as soon as they entered the carriage. They remain oblivious to what is happening in the background, to their classmates, who are jumping, shouting and fighting to get into the photo the teacher is taking of them. Occupying the minimum space of their seat and with their legs crossed, they hardly move, nor is their voice heard during the subway ride. But those of us who grew up with the phrase “You, look and be quiet” recognize each other. I look at them and they are quiet. I don't need words to discover their universe, hidden behind the mobile phone screen.