In certain nations, trick-or-treating is a popular Halloween activity for both children and adults. Children dressed in costumes walk door to door in the evening before All Saints' Day (November 1), asking for meals with the phrase "Trick or treat." In most civilizations, "treatment" is in the form of sweets, while in certain cultures, payment is offered instead. If left unused, a "trick" refers to a threat to conduct bad acts against the homeowner(s) or their property. Trick-or-treating is traditionally done on October 31st. Some homeowners display Halloween decorations outside their doors to signify their desire to indulge in junk food; others just stock pre-made foods in their businesses for the holiday.

Trick-or-Treat is a traditional Halloween style for children and adults in some countries. On the evening before All Saints' Day (November 1), children in costumes go from house to house, asking for dishes with the phrase "Trick or treat". "Treatment" is usually some format candy, although in some cultures currency is given instead. "Trick" refers to a threat, usually idle, to perform naughty activities against the homeowner(s) or their property if left unused. Trick-or-treats usually appear on the night of October 31. Some homeowners signal their willingness to indulge in junk food by putting Halloween decorations outside their doors; Others simply pre-made snacks in their stores for the kids to make themselves. Homes may also leave lights on in the presence of their homes as a general sign that they have candy.