This project uses a list called "ideas," which contains a lot of things for the sprite to think about. The character chooses a new random item from the list to think each time. What other projects can you make where a word or value is picked randomly from a list?
Thanks to earlier Scratch Team members who created this project. I've updated this to account for platform changes, so now the "pick random" block is used to get a result. You can check out my video tutorial on Variables and Lists on the official Scratch YouTube channel (ScratchTeam; look for the Variables and Lists video series) and find a link to written resources related to this topic in the video description.