answer: #Person1# saves the seat for Grandpa according to table manners. Grandpa asks #Person1# to have 'long-lived' noodles first.
documents: #Person1#: Grandpa, this seat is for you, for you are the eldest person here and also it's your birthday today.
  #Person2#: Oh, you are such a good child today. Come here. Sit next to me.
  #Person1#: I'm afraid I can't do that. It's Dad's seat, according to the book about table manners.
  #Person2#: Oh, you read? Very good. Then, I think we should do something different today. I'll give you some privilege.
  #Person1#: Great. That's my favorite seat which will be the nearest to the birthday cake.
  #Person2#: Now I see what you read the book for. But it's fine. I'll give you the lion's share.
  #Person1#: Why do they serve up the noodles first? I don't like it. Where is the cake?
  #Person2#: This is not common noodles. They're ' long-lived ' noodles. it's an old Chinese tradition to eat. long - lived noodle on birthday.
  #Person1#: I see. Then I'll try it.