Drat! The Japan trip is now a week away and I’m not really progressed a significant amount.
I have learned that the most important work is word 5, “Sumimasen”, which means the equivalent of “excuse me” and “I am sorry”, and can be used in the sense “Sumimasen, can you tell me where the train station is?”, or “Sumimasen, I’m so clumsy”.
I think I will probably learn far more on the plane, and during the trip, than I have done up to this point.