Table manners are how you are expected to behave while eating. Mind your table manners.
They differ enormously, and finishing everything is polite in one country and rude in another. Table manners exist to make eating together comfortable, which is worth remembering when they are used to embarrass anybody.
1nountable mannersHow you are expected to behave while eating.
“His table manners were corrected daily for about a decade.”
table manners is manners.
Practised in Manners & Etiquette