If you've noticed an unusual amount of teddy bears around town, your neighbourhood may already be participating in a teddy bear hunt! The easiest way to find out is to search on Facebook or NextDoor (or a similar app that your neighbourhood may use) for "Teddy Bear Hunt" or "Going on a Bear Hunt" and the name of your city.
If you find there is already one in progress, it's time to put those bears (or other stuffed animals) out in your home's front-facing windows and then head out for a drive or walk around town to look for others.