answer: #Person2# suggests #Person1# ask #Person1#'s son what activity he's interested in.
documents: #Person1#: I don't know what activity my son should take part in?
  #Person2#: Many children are learning drawing, dancing, swimming and so on in their spare time. You can follow suit.
  #Person1#: But each children has his own interest.
  #Person2#: Well, you should talk with your son and let him make his own decision.