There is not much call for a complete working knowledge of table manners in America today. Many families only gather all at once around the dinner table at holiday feasts, and most restaurants are too casual to require, or even to allow for, more than basic good table manners.
I think good basic table manners are important because it ensures both guests and hosts are comfortable at the table. Table manners are mostly common sense. Below are the basic table manners:

1. Sit up straight.

2. Don't speak with your mouth full of food.

3. Chew quietly, and try not to slurp.

4. Keep bites small.

5. Eat at a leisurely pace.

6. Don't wave utensils in the air, especially knives or if there is food on them.

7. Keep your elbows off the table.

8. Don't Reach. .

9. Don't forget please and thank you.

10. Excuse yourself when leaving the table.

11. Compliment the Cook.

12. Wipe your mouth before drinking.