mind you p's and q's
vocabulary:manners
    no elbows on table
        don't hold up your chin by your hand.
    ask politely to pass condiments.
        tomato saurce,mustard saurce
        condiments is something be added a litte bit to flavor the food.
    eat with mouth closed
        don't let others see what are you eating in your month.
    don't make noises when chewing
        chewing means use tooth to break out food
    ask to be excused from table
        
    don't talk with your mouth full
        others can't hear clear what you have said,
        and the food might spill out from your mouth.
    don't start eating util everyone is at the table
    wash hands before eating
        you don't get sick and won't pass sick to others.

grammar focus: negative phrases for positive actions
      you shouldn't slurp soup from the bowl

language point
    if someone is eating messily,(make the food fell out from bowl or mounth on the table)
    greedily(eat too much),
    and without taking their time to enjoy eating we can say they are eating like a pig
    (means not chewing and tasting , shovel the food quikly)

culture point：relax
    most restaurants and dinner parties these days are fairly relaxed and more laid back than before.
 formal banquet or formal restaurants are the only places where extreme etiquette may still be used.

   the truth is ,these days,table manners are mainly used to teach children to be well-behaved at the dinner
table.
utensil ,common utensil means the public utensil .