One of the enjoyable aspects of living in Japan has been the signs. I loved seeing the street-sign art in Italy; little easter eggs everywhere. While that kind of graffiti won’t be tolerated in Japan, their un-altered signs have been have been helpful, amusing, and sometimes just weird.
Helpful
Wow – there’s English pretty much everywhere. Especially airports, train stations, Starbucks. Moving to Japan is really not enough to guarantee that you’ll learn Japanese. (The signs are also in Chinese, Korean, and universal pictures.)