Don't play with your chopsticks!
When I was child, my grandmother often said to me. "don't play with your chopsticks!"
1. Don't pointed out people with chopsticks
2. Don't spear your food with a chopsticks
3. Big no no is stand chopsticks upright in rice, (this means 'death')
Of course it's better use chopsticks properly, but more important
try eat your food with chopsticks and enjoy food!!!