Grab a stick, kids.  Practice makes perfect.

Anybody can beat free bird on expert, the trick is just to play it a lot and go crazy on the neck if you get scared. Once you have mastered this you have to find a way to stand out of the crowd. 

Take a tip from the actual professional musicians: Next time you are at a party or social gathering, try showing off your guitar hero (or rockband guitar) skills by playing behind your head, between your legs, or even with your teeth. 

You will most likely gain respect from your male friends or sexual gratification from your female friends.