People think it's impolite to whispear when others are having supper .
People think it's impolite to talking when eating.
People think it is not good manner that talking when eating.
People think that talking during the meal is impolite.
这应郑敏含该是有语境喊笑拿轿的:
It is considered bad manners to whiper over a meal (比如说where there are many other people present)