Halloween costumes are traditionally related to ghosts, skeletons, witches, and devils. Black and Orange are the famous color for this day. The Jack-o-lantern is the festival light for Halloween. Pumpkin is a good substitute of the turnip, to be used as Jack-o-lantern.
Trick-or-treating is a traditional celebration for children on Halloween. Children in their costume go from house to house, asking for treats, with a question, "Trick or treat?" The word "trick" refers to a threat to trouble the homeowners or their property if no treat is given. People generally give candy to the children who come to their house.