Woman at the bookstore. I chose her as a subject because I could sit nearby with a magazine propped up, and hopefully be inconspicuous in my glancing. After I started drawing, I noticed that she had a large scar on her chin, and it occurred to me that she might be really self-conscious if she knew I was sketching her. It struck me that we can so easily be embarrassed about stuff that nobody else gives a damn about. Good lesson to remember.