Strangers, someone said, are just people you haven't met yet. Until you meet them, they're just faces in a crowd that you pass while hurrying to an appointment. They're the other people standing in the elevator with their eyeballs rolled upward, fixed on the floor numbers. Nameless people who don't stand out to you simply because you've never met them before. After the introduction is made, well, that's a different story. You find out you grew up in the same town or city, have the same interests--or opposing viewpoints--and share a love of books, travel or dogs. Faces in a crowd. There are a lot of us.