I just came back from Japan about a week ago and it was a cool full on experience! The people there are really nice, except from the people at Kyoto. I really liked Hiroshima because the people and students we randomly waved hi to replied back. I even snagged myself some pen friends! As for Tokyo, it's really really smokey there. Alot of people smoke. They even have smoking stations!
And about the shopping in Japan, it's absolutely bonkers! There is a shop 109 for men and women and it's filled with heaps of shoes, accessories and clothes. But they're pretty pricey
It was so fun