>>510971711>>510971790don't listen to this guy. He's a liar and a fraud.
It absolutely does matter.
Here are the things that matter the most
0. Manners. Quiet, stand on the left side escalator (right side Osaka), face outwards when you stand on the train, know how to use chopsticks and don't stick them in food etc.
1. Hygiene. No beards, nice haircut, good smellโ most Japanese women think white people smell bad.
2. Style. No shorts and avoid jeans as much as you can.
3. outward effort with language and cultureโ you don't have to be fluent just try.