intro/chorus riff   verse
G|12--9--/14--17-\12-|-----------3-----------------------------|
D|----10-/15--16-----|--------3----31---------3--3----0--3--0--|
A|-------------------|3-3-3-3---------3-3-3-3------3-----------|
E|-------------------|-----------------------------------------|

that's the basic idea.  Just make sure to add a little creativity to it.