Some have said it is the easiest group at the World Cup, but we realize it won't be like that. Germany are a tremendous side, but to be honest I don't know much about Cameroon and Saudi Arabia.
For me, something will come in my head and I'll either end up calling my cell phone to record it, or I'll just pick my guitar up and see what comes out. Sometimes it sucks, sometimes it doesn't. So there's really no set method behind it.