Found there are a few Facebook groups for Japanese cooking. I have just joined one, pending approval. There are some interesting rules for the group. One states that it is rude and disrespectful to show photos of your efforts with chopsticks stuck in the food, or crossed over your bowl/plate. Posts that break this rule are removed and you have to brush up on your chopstick etiquette, and then resubmit. Good to know.
Rob