A Public Service Announcement is a lot like a commercial. Instead of trying to convince your audience to buy something, you’re trying to convince them to do something. PSAs are usually designed to fit into the same space as commercials, but they can be longer.
Your PSA should have:
The problem can be a real one (like pressure at school or homelessness) or a fake one (like too many robots on campus or not enough robots on campus). If you choose a real one, pick one that you feel strongly about.
Tell your audience how they can help. If you choose a real problem, make sure you offer real solutions. You might help someone!