Your PSA should be ready to read on the air. Develop posters for your project and place in prominent areas around your campus. Inviting volunteers to participate in the project is another good way to get more people involved. You may also wish to slip project announcements in each student's mailbox. Tips for making a good poster and sample meeting announcements follow.
Poster Keep it simple.
The object is to make your poster stand out from all the other stuff on the bulletin board. Talk to the people at your copy place about your situation and needs. Let them suggest alternatives. Check with design students at your school. They may be able to design your poster or a logo for extra credit in one of their classes.