Decide an issue that you care about for your video.
Add a backdrop and spokesperson sprite.
Create your opening message.
Program the play button and the spokesperson.
Attributions
"Falkland Islands Penguins 40" by Ben Tubby (https://commons.wikimedia.org/wiki/File:Falkland_Islands_Penguins_40.jpg) -- Licensed by CC BY 2.0 (https://creativecommons.org/licenses/by/2.0/) -- No modifications made to image