Hanoi is the noisiest, most insane place we’ve visited in ages — maybe ever. People eat, park their motorbikes, argue, kiss babies, sell everything and anything they can and basically live their lives on the street. Because it is so densely inhabited (and people here seem to never sleep), there are virtually no sidewalks to walk on. People honk their horns LOUDLY and constantly and incessantly.
Barring the crossing-the-street fear factor, we love it here. Mostly.