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.
Question 2
Question
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.