1. Walk on the wrong side
Even though greater Tokyo is one of the most-densely populated urban centers in the world, here, crowds are orderly. Pedestrians on wide sidewalks follow the unspoken rule of staying to the left almost as strictly as cars do. On Tokyo escalators, the rule becomes still more complicated: you need to stand on the left and walk on the right this time. Don’t you dare stand in the walking lane and walk in the standing lane, or you risk being trampled by a crowd or remorseless pedestrians.