That's a list for common decency and basic good manners.
Life would be far better if everyone just follows that list.
There are a few other things and I have read about body language and etiquette around the world and I know it's not the same everywhere but some stuff CAN be applied everywhere.
So added to that list is: Close your mouth while chewing/eating.
There might be people with medical/physical issues but this is obviously not for them.
I just can't see a reason why you would chose to chew with your lips open. Lol
Open-mouthed and noise eaters man, that's a good one to add to the list; cows and camels are excused because that's what they do, hippopotamus' too and some others but I don't see a reason humans need to.