Then think of images, characters, actions, dialogues, etc. You could write a short script that could contain words, actions, or a combination of both. Then practice your piece very well before taking it to the streets. Popular theatre works well with television, because again that medium conveys images. The News Media - The news media consists of radio, television, and newspapers.
Mainstream media is often the method a lot of groups chose to communicate.
However you should approach this area with caution. Again, think of what you want to say and who your audience is. Remember that the mainstream media exists to make money. Therefore they are not unbiased but have a vested interest in what is communicated through them. You can be sure that they will almost never articulate your views the way you want them to be articulated.