When I'm taking the subway to my improv shows I will be...

When I'm taking the subway to my improv shows I will be writing in my notebook different actions that I see people doing on the train whether it's eating yogurt or looking at where their stop is, or tripping or holding a baby. It's not preparing scenes and ideas as much as it is stoking your brain to think observantly. Just to place observations in your head, so that they are available somewhere.