Seated across from me on the subway, a nicely dressed and pleasant looking couple with a [approximate age] 12 year old girl between them. Girl was holding and looking at a large book that included pictures. Man and woman were having a discussion. As to the tenor of the conversation, didn’t appear to be either happy or sad, and they were soft enough that I could not gleam the topic of discussion. I watched the girl ‘reading’ the book, to see if she really was or was she listening. How long would it take her to turn the page, given the page had pictures and words? She appeared to concentrate on the page but never turned it. The discussion continued and slowly she began to move ever so slightly in the direction of the male [her father?] until she laid her head on his shoulder. She kept it there for most of the rest of the trip, as the adults continued their talk. She finally turned the page.