A "trick-or-treater"The main event for children of modern Halloween in the United States and Canada is trick-or-treating, in which
children disguise themselves in costumes and go door-to-door in their neighborhoods, ringing each doorbell and yelling "trick or treat!"
to solicit the usual gift of candies. Although the practice resembles the older traditions of guising in Ireland and Scotland, ritual begging 
on Halloween does not appear in English-speaking North America until the 20th century, and may have developed independently. Upon 
receiving trick-or-treaters, the house occupants (who might also be in costume) often hand out small candies, miniature chocolate bars,
loose change, soda pop, or even crayons and pencils (some people even give out their business cards!). Some homes will use sound
effects and fog machines to help establish an eerie atmosphere. Other less scary house decoration themes might be used to entertain
younger visitors. Children can often accumulate many treats on Halloween night, filling up entire pillow cases, pumpkin-shaped buckets, 
shopping bags or large plastic containers.