Many from our tour had stopped at one of the large towers on top of the wall and were trying to take pictures. A young woman asked if we would like her to take pictures of everyone. We gave her about a dozen cameras and she proceeded to snap away. As she returned my camera, she recognized that I was wearing an alumni watch. She was alumna as well.
When I lived in southern CA, I had vanity plates MGOBLO. I got lots of honks and waves on the freeways!