answer: Susan gives Tim some useful advice on the Christmas gifts for his colleagues.
documents: #Person1#: Hi, Susan. How are you? I've been wondering when I'd run into you. What are you busy with?
  #Person2#: Nice to meet you here, Tim. I'm buying some Christmas gifts for those who work with me, but it's really a headache.
  #Person1#: Maybe I could give you some advice. Firstly, you'd better divide them into different groups-who were the people that are your friends as well as your workmates and who are the people you do not know well but you see pretty much daily.
  #Person2#: OK, then what should I do?
  #Person1#: For the friends, you want to get them personal gift. Do they like chocolate?
  #Person2#: This is what I always give, but I know Mary is on a diet.
  #Person1#: Does she like fruit or coffee? Anyway, think of the gift that you know your friend likes.
  #Person2#: Well, I think fruit is helpful to keep fit. What about the rest of them?
  #Person1#: Leave cards in their mailboxes or on their desks.
  #Person2#: Christmas cards?
  #Person1#: Yes, you can afford that. More importantly, it's true of them that you're thinking of them.
  #Person2#: Thank you for your suggestion, Tim. You really have saved me and my money as well.