And the correct answer is…
It is NOT good manners to pass food from your chopsticks to someone else’s.
Indeed, it is rather taboo because it is reminiscent of a funeral ritual in Japan where cremated remains of a loved one are passed between special chopsticks before internment.
If you need to pass food, use the communal chopsticks to move the item from one plate to another.
In the absence of communal chopsticks, turn your chopsticks around and use the end that hasn't been in your mouth.
This prevents cross-contamination and is much more appropriate.
