Think Halloween and the following activities come to mind: spooky decorations and images, carving jack-o'-lanterns, trick-or-treating, costume parties, apple bobbing, playing pranks, telling scary stories and watching horror films.
Spooky decorations and scary costumes. Normal homes become haunted houses on the day with homeowners decorating their porches or home entrances with plastic spiderwebs, paper skeletons, scarecrows, and eery jack-o'-lanterns. The more realistic, the better. In invitation for those brave enough to come knocking on the door.