Which if the following is proper etiquette at a Japanese dinner?
Using your chopsticks to point at dishes you would like to have passed to you.
Reversing your chopsticks to take food from a common dish.
Vertically inserting your chopsticks in the remaining rice in the bowl as a sign that you are finished eating.
It would be a good idea to use an extra dab of after shave, cologne or your favorite perfume when getting ready for a business meeting with your Japanese colleagues.
When using a toilet in Japan it might be important to:
Use toilet slippers (often red) only in the toilet.
Carry a handkerchief for drying your hands, or paper tissues.
Squat facing the direction you faces as you enter (the back wall). Otherwise the toilet paper will be "in back of you."
Be careful of the buttons you push-high-tech toilets often include heated seats, bidet, and other functions!
All of these answers.
Normally when you hear a Japanese person saying, "yes, yes" she or he is demonstrating agreement with you.
Sushi should be:
Eaten with the fingers only.
Eaten only with chopsticks.
Turned upside down to be dipped in sauce