Yesterday we went out to eat at Mozza Mia, a wood grilled pizza place in Edina, with my mother and father -in-law. My husband and I got there earlier than they did and I had a tiny (3.5x5) pocket sketchbook and pen with me and sketched while we talked and waited.
The food was great and they have an open wood fired kitchen, so you can see the chefs working and the fire in the big open ovens.
I had never done that before, sketched in a restaurant, and I think it was a nice way to pass the time and notice as well as remember someplace new.
Neither sketch took very long, 10 -15 minutes, with a pen.