I don't spend all that much time thinking about how I move through a city-scape, because ninety percent of the time I am moving, it's with a specific location in mind. It's in my nature; I am always thinking about the destination, rather than the journey. The more I think about it, the derive is actually the total antithesis of how I move throught the city. Nothing I do is random, and lately, I feel it's because I haven't allowed myself the time to be random. A few weeks ago, a derive would have seemed like a great idea, but now with this new cold snap, it just seems like a deathwish.
My hope for reading week is that it warms up, even just so the chill is tolerable. If this happens, I will absolutely attempt a derive. Perhaps I'll invite someone along (spontaneous and uncharted field trip, anyone?)
For the performer/creator part of my brain, the derive is literally improvised performance; you must allow yourself to be influenced by the other actors in the scenario and the scenario itself. A good rule of thumb in improv is to constantly be making offers and saying yes. I think that rule can be applied to the derive as well. If you start saying 'no', it's because you desire too much control.
Another thing we often say in theatre is to "follow your impluse". Again, I think this is true of the derive as well. Some of the best work I've seen my peers present has been informed by a single impulsive gesture. The derive, as well, can yield amazing things if you let your feet do the thinking, as well as the walking.
RESIST NOT. There is so much to be found in the drift.