Help! Best Marathon Cheering Sign?

This is a plea for help. My friend Xenia is coming up to Edinburgh to run in the Edinburgh Marathon on Sunday. I've never spectated or cheered at a marathon before and I'd like to do it properly. Of course I can come up with an unimaginative sign that says something like, "Go Xenia!! Go!" But I want to do better.

Ideas? Suggestions? Please, please, please, bring them on!!