answer: Steven bought a dress for his wife as a birthday present. #Person2# tries it and is happy that Steven knows her size and style.
documents: #Person1#: Darling, this dress is for you. I hope you like it.
  #Person2#: Oh, very beautiful. Thank you, Steven, I like it very much.
  #Person1#: Your birthday is coming, and I think this dress suits you. Why not try it now?
  #Person2#: My birthday present? I can't help telling you that I am a happy woman, darling. I will come back soon. ( Go to her bedroom and wear the new dress, then show it to Steven. )
  #Person1#: It fits me exactly. How does it look like?
  #Person2#: It displays your slender figure, darling.
  #Person1#: The most important thing is that you bought it for me. I am happy that you know my size and style.
  #Person2#: Because you are my dear wife.