The idea of the morning person aside, morning commuters seem to fall into one of two categories: the Caffeinated and the Un-caffeinated—the latter category being those who intend to consume coffee, but haven't quite gotten their morning java yet. And they're easily recognizable as such. The Caffeinated are bright-eyed and engaged with the day's events already—they're reading their morning papers, or checking email, or reading for pleasure. They're sometimes armed with travel mugs or Ventis from their coffee shop of choice. They rattle the ice in the clear plastic beverage cups from mobile vendors on summer days. They walk a little faster in the early hours having long left last night behind.