Right now, you're probably asking what it is you're doing wrong. Well, here's exactly how to fix the 17 dining mistakes you're making that you never knew about!

1. Wait until everyone is seated and served before you start eating

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via FitDay

2. Use your utensils from the outside in

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via Chasing Boon

3. Don't place items on the table that are unrelated to the meal

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via The Protocol School of Washington
Keep your phone, keys, and whatever else off the table.

4. Don't use salt and pepper before you taste your meal

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via List Crux
Doing this is an insult to the chef.

5. Rubbing your chopsticks is considered rude

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via Asian Fusion
It's a sign that you think the establishment is low quality or that their utensils are cheap.

6. The way you position your utensils sends specific signals to the waitstaff

Dining Mistakes You're Making That You Never Knew About 1
via I Waste So Much Time

7. Resting your chopsticks across your bowl is considered a breach of etiquette

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via Best American Arts

8. How to properly eat soup

https://www.youtube.com/watch?t=17&v=GMcZ_px_q2Y

<iframe width="742" height="442" src="https://www.youtube.com/embed/nWWaYY5VSjY" frameborder="0" allowfullscreen></iframe>

9. Letting your chopsticks stand in your rice bowl is considered an offering to the dead

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via Just Hungry
It's an absolute no-no.

10. There is a proper way to hold and place your utensils down

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via The Art of Doing Stuff
You shouldn't hold your knife like a dagger or place the cutlery back on the table once you've picked them up.

11. The salt and pepper should always be passed together

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via flickr / Joe King

12. How to eat lobster properly

https://www.youtube.com/watch?v=nWWaYY5VSjY
<iframe width="742" height="442" src="https://www.youtube.com/embed/nWWaYY5VSjY" frameborder="0" allowfullscreen></iframe>

Your best bet is probably to not eat lobster in public.

13. Don't talk with your mouth full

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via E!
This should go without saying, but sadly, it needs to be said.

14. Never pass food from chopstick to chopstick

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via tumblr / curiositychronicles
It is too close to symbolically passing someone's bones at a Japanese funeral. Use a plate instead.

15. This is considered an informal dining setting

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via Etiquette Scholar

16. And this is what a formal dining setup looks like

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via Etiquette Scholar

17. Always remember to tip

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via peerTransfer
They say the standard now is 20%. If your meal was bad, don't take it out on the server's tips. Always bring up problems when they happen so the server can rectify the situation.
Collage source: I Waste So Much Time
SOURCE: http://diply.com/weird-facts/proper-dining-etiquette/64972/2
credit to the owner of the Youtube.com source