Halloween is celebrated on October 31st with children dressing up in costumes and going door-to-door asking for candy or treats. Adults celebrate by hosting parties, watching horror movies, or creating haunted houses. The tradition of trick-or-treating involves children demanding sweets while threatening harmless tricks, and pumpkins are often carved into Jack-o-lanterns and used as decorations. Popular Halloween costumes and candies as well as legends surrounding the holiday's origins are also discussed in the document.