How can I set a button to load random pages from my WordPress site?

There seems to be a plugin for doing with this with posts, but I will never use posts as long as I live. I tried it out and of course it didn't do anything. Is there a way I can put something in code snippets (or even anything easier) that would be triggrred by a URL/button?

If you're knowledgable and kind enough to answer, please bear that in mind that I have zero understanding of code. :/

Thanks.