In Western countries, children will dress as ghosts came out to celebrate with friends persuaded that play trick or treat (trick or party) is to go knocking on doors asking for candy at home.
In Western countries. The children will dress up as demons together to persuade friends, celebrations or Trick play called Treat (trick or fed) is to knock on the door just ask home desserts.
Children will dress in the country in the West is the devils work, invite friends to celebrate called the play or Treat Trick (fake or banquet) is a knock on the door to the house cake