Ответ:

On a warm day:

  • hang out at the shopping centre
  • do the gardening
  • have lunch outdoors

On a rainy day:

  • read a book
  • rent a DVD
  • chat with friends
  • play computer/board games
  • surf the Net

On a hot day:

  • go sunbathing
  • go surfing
  • play beach volleyball