Although most Japanese people can speak a little English, it would not hurt to familiarise yourself with a few common Japanese phrases. While major train stations, airports and tourist spots in Tokyo might have signs in both Japanese and English, in a few local or off-the-beaten-path areas, English signage might be limited. The same applies to menus in restaurants. If you are in a restaurant in a tourist-heavy zone, chances are you will be offered an English menu or menu with pictures in the least. However, if you walk into a smaller establishment, you might find it helpful to know the Japanese name of a dish. Certain translation apps might even have a camera feature that would allow you to translate a sign or a menu.