Go around looking for trouble.
Go to the mall and eat cotton candy.
Knock at people's houses "trick or treating" to get candies.
Stay home watching Halloween movies
Do homework or else the boogieman will pull their feet while they're asleep.
Because cats like Halloween
Because the Celts believed black cats were people turned into animals because of evil magic.
Because cats are evil personification
April Fool's - April 1
Labour Day - May 1
Day of the Dead - November 2