I like to play pennywhistle while walking. When I was at swat I would play whistle as I walked back and forth from my off campus dorm. Now that I walk to work, I can play again.

It is usually unpleasant to play whistle when it is cold, but for our first christmas together, in 2007, julia knit me a pennywhistle mitten:

It has two cuffs for your hands to go in, a hole in the top for the whistle, and you can play without getting your fingers cold.