With COVID-19 rules being lifted and the gray areas only grayer, what’s OK to do or ask in terms of masks, vaccines and social events? Is it OK to ask someone if they have been vaccinated? What kinds of questions should I ask if I’m invited to a dinner party? Can I try to change the mind of a friend or relative who is vaccine-hesitant? What is the best way to greet someone whom you haven't seen in a year?