Is it impolite or polite to say thank you for food?
It is polite.
what does piece of cake mean?
It means, something that is easy to do
Is it impolite or polite to make noises in Japan while eating?
It is polite, that just means you like the food.
There is no worth over crying about spilt milk
It means that don't cry about something thats was in the past or that already has happened.
Is it impolite or polite to leave the table without saying thank you or may i be excused from the table?
It is impolite.
That means you want to know the secrets or want to know information.
Is it impolite or polite to burp or fart at the table?
It is impolite.
Tobe packed in like sardines
That means crowded together so there is no space to move around.
Is it impolite or polite to put your hands/elbows on the table?
It is impolite.
The apple to somebodys eyes
That means to be proud of someone you love.