In case you missed Joan's post to our Facebook Group page you should check out this hysterically funny piece about Drawing People on the Subway.
I know almost everyone in the group has at one time or another done this so you'll love it.
The post was created by Hallie Bateman, and was originally posted at The Awl. Hallie is a NY based artist living in Brooklyn. Joan became aware of Hallie's work when MataGirl, (who's work you may have seen) an Urban Sketcher and friend sent her the link.