Several months ago, I was returning home on the Washington DC metro (subway) in the evening after a long day at work. There was a woman in the lightly filled car that got my attention. She had the kind of sun creased face than in men we call "character filled" and which women avoid with moisturizer and sun screen. She sat with her feet flat on the floor and her knees almost shoulder width apart.
I thought it must be a sister, and wanted to acknowledge with eye contact, a smile, or other friendly gesture. But what really confirmed it for me was her intense concentration on the book she was holding. During the 10-15 minute train ride, she never once looked up from the book, never checked her surroundings, or looked at anyone else, including me. I have never seen anyone, male or female, avoid the world with such dedication.
I finally got off at my stop without ever getting her attention. To my knowledge, she is the only one I have ever seen "in the wild" so to speak.
Liz