I go to the gym three days a week at the same time. I see many of the same people each time, but I have never talked to them. I know their patterns. I was aware that one woman I saw each time was not there for a long time. When she returned, I was walking past her and I mentioned that I had not seen her for a long time. She said she had foot surgery and was gone for three months. For a few days, we smiled and said hello. As I was leaving one day, she asked me my name and introduced me to another man she was talking to.
I now know the names of two people I have seen for almost two years.