@@user-tk8bc8dn7h They’re not implying that there’s a relation between eating with mouth open and using chopsticks though... Maybe you should read more carefully.
@@user-tk8bc8dn7h Sure. But eating with the moth open is a no no. But all the things regarding the chopsticks is not a thing here. But I do know that there is a thing in Japan. And I will remember if I ever travel to Japan.