Frankly, Manhattan's transportation systems are a marvel. It's simply miraculous that so many people can gather on this little island and move around it. For the most part, you can get where you're going pretty quickly and easily using some combination of subways, buses, and cabs; this section will tell you how to do just that.
But between traffic gridlock and subway delays, sometimes you just can't get there from here -- unless you walk. Walking can sometimes be the fastest way to navigate the island. During rush hours, you'll easily beat car traffic while on foot, as taxis and buses stop and groan at gridlocked corners (don't even try going crosstown in a cab or bus in Midtown at midday). You'll also just see a whole lot more by walking than you will if you ride beneath the street in the subway or fly by in a cab. So pack your most comfortable shoes and hit the pavement -- it's the best, cheapest, and most appealing way to experience the city.
On the Sidewalks--What's the primary means New Yorkers use for getting around town? The subway? Buses? Taxis? Nope. Walking. They stride across wide, crowded pavements without any regard for traffic lights, weaving through crowds at high speeds, dodging taxis and buses whose drivers are forced to interrupt the normal flow of traffic to avoid flattening them. Never take your walking cues from the locals. Wait for walk signals and always use crosswalks -- don't cross in the middle of the block. Do otherwise and you could quickly end up as a flattened statistic.
Always pay attention to the traffic flow. Walk as if you're driving, staying to the right. Pay attention to what's happening in the street, even if you have the right of way. At intersections, keep an eye out for drivers who don't yield, turn without looking, or think a yellow traffic light means "Hurry up!" as you cross. Unfortunately, most bicyclists seem to think that the traffic laws don't apply to them; they'll often blithely fly through red lights and dash the wrong way on one-way streets, so be on your guard.