Press the green flag to start, It might be nice to have it on turbo mode (press shift as you click the flag), although that can interfere with the talking, so do that at your own risk.
This is about a really fun thing I found to simulate. A lot of the specific options I used come from this website: https://beltoforion.de/en/recreational_mathematics/chaos_game.php#idRef1 I was originally introduced to this concept by a numberphile YouTube video on it. Feel free to take and adjust the code I use to simulate it. I will probably be building a simulator that others can play around with shortly.