Make eye contact and small talk.
"This is not just polite. It is part of being a citizen and a responsible member of society. It is also a way to stay in touch with your surroundings, break down social barriers, and understand whom you should and should not trust. If we enter a culture of denunciation, you will want to know the psychological landscape of your daily life.
"Tyrannical regimes arose at different times and places in the Europe of the twentieth century, but memoirs of their victims all share a single tender moment. Whether the recollection is of fascist Italy in the 1920s, of Nazi Germany of the 1930s, of the Soviet Union during the Great Terror of 1937u – 38, or of the purges in communist eastern Europe in the 1940s and '50s, people who were living in fear of repression remembered how their neighbors treated them. A smile, a handshake, or a word of greeting – banal gestures in a normal situation – took on great significance. When friends, colleagues, and acquaintances looked away or crossed the street to avoid contact, fear grew. You might not be sure, today or tomorrow, who feels threatened in the United States. But if you affirm everyone, you can be sure that certain people will feel better.
"In the most dangerous of times, those who escape and survive generally know people whom they can trust. Having old friends is the politics of last resort. And making new ones is the first step toward change."