If you want to refuse a dish for a specific reason (diet, allergy, etc.), then you need to tell the owner of the feast the reason, this must not be done before the other guests.
If food is stuck in your teeth, you must leave the table even if there are toothpicks on it and solve your problem in the toilet or in a separate room, in no case do not pick your teeth with other guests, this is a bad taste.
Try to eat in small portions - one bite so that your mouth is not filled with food, if you are asked something and you have to hold a conversation.
Each girl, when going on a visit, applies makeup, but before eating, lipstick should be wiped off the face, since leaving lipstick on the devices is neither ethical nor beautiful.
If you smoke and are in a cafe in the smoking room, this is not a reason to neglect the rules of etiquette, before smoking, ask if your companions mind, do not use the plate as an ashtray.
On the table, not when extra items, such as packs of cigarettes, telephones, a handbag, gloves, glasses, should not be located — all that does not apply to eating.