PlayCanvas lets you "publish" your world to create a version of it that can be played by sharing the link. If your project is set to "Private" (only available in paid PlayCanvas accounts), only people with the link can see your world. If your project is "Public," it may be visible to other people visiting the PlayCanvas site.
You can also export an 'HTML5' version of your project which can be uploaded to a personal website, or to a games sharing site like itch.io (if you have caretaker permission). This version of the game would remain accessible and playable, even if your PlayCanvas account expires (or if the PlayCanvas site goes down).
Some people may not be able to visit your digital place directly because they don't have a system that can run your game (like a phone, or an older computer). Or you may not want to share a direct link to your project. We're also going to record a video "walkthrough" of your world that will make it easy to share with friends, family, and others. If you want, and if your caretakers allow, you might even share your video on YouTube or other social media.
If you need a refresher, the tutorial on screen-capturing with Screencast-O-Matic is linked below.
Then, take some time to visit other peoples' virtual worlds! Record your experiences in them - will you be surprised, scared, delighted, curious...?