Fukuoka’s Yatai (street food stalls) are famous. At night they can be found at various locations in the city but the greatest concentration is along the river. People flock there in masses to have a bowl of noodle soup, or some drink and the atmosphere is lively. Friends talk to each other, strangers talk to each other and sometimes become friends.
Yatai case study, for future reference (just after opening shop):
Front View: