2. Walk right -- on the left
With 35 million people, greater Tokyo is one of the most densely populated urban centers in the world.
Yet crowds are orderly.
Everyone waits until the light changes to cross the street.
Pedestrians on wide sidewalks follow the unspoken rule of staying to the left almost as strictly as cars (also on the left) do.
Exception: On Tokyo escalators, stand on the left and walk on the right. (Around Osaka, escalator etiquette is reversed.)