That's a lovely exercise, whatever the circumstances. So much nicer than thinking about how different we all are and feeling alone.
Makes me think of my recent walks on a particular beach. Normally I walk in fairly deserted places but my dog, Ginger, loves this particular beach because there are so many dogs to play with. I end up people-watching, wondering about what each person does when they get home, why so-and-so is so caught up in his own head, and on and on. Creating these stories brings us closer to others and certainly makes us feel less alone.