Simply press the green flag (don't spam it) ... for both times. ;) You don't need to use any computer keys, just your mouse.
Here is my FPC Application! I put a lot of hard work into this, so I hope I can be considered to be a FPC. This is a completely original project, the idea/concept was thought of entirely by myself. The code is 100% by me. To make this project, I used Scratch (of course), Powerpoint, Canva, and Google Images. The music is 'Memories' from bensound.com Thanks to @speakvisually for their project on how to make an FPC Application. It was really helpful! :D Also here is the link to my sample studio: https://scratch.mit.edu/studios/31937491/