The sign reads:

  use 'inquire' to get a list of pets available
  use 'adopt <pet>' to adopt an animal

  Instructions for having pets:

  You can tell your pet to do things 'say <pet> <command>'
  If you abuse your pet, it will no longer regard you as its master.
  You can only adopt one pet at a time

  You can name the pet you adopt as : "adopt <pet> <name>"
 
  Regards,

   The Shopkeeper
 
