
If you happen to find yourself walking down the sidewalk and you are three wide most likely there is someone behind you plotting your demise. This city is all about hustle and bustle. If I can't get by you on the sidewalk, no matter how great of a picture of the Empire State Building you are trying to get, I am not happy. New York is not a vacation for me and I need to get to work, lunch, or back to the train. My primary mode of transportation is my feet so I need to go the a bit above the speed limit when possible.
Look, we all slow down to read our phones or look at a store front but just like the road get out of the way if you are going to slow down. Consider the sidewalk a street, stay in your lane and move with the flow of traffic. This is LOCALS and tourists and by all means never block the stairs to the subway. This may get you bumped (shoved) down the stairs by accident.
It should come as no surprise everyone in New York is in a hurry to get somewhere!