I, too, was told to stand up straight. I was the tallest girl in my class for a very long time. My godfather was an orthopedic surgeon. I loved ballet.
All those things "told" me to stand up straight.
The better to see with!
And leaning in is a sure sign of paying attention.
Paying attention and writing slowly= two lessons I'm taking away from Facebook today.
(Maybe it helps that I'm looking at a lot of trees this week?)