Personally, I love to pretend I'm rocking out on a guitar if I hear a kick ass song. Some people may judge and find it weird, but thanks to the Air Guitar Move app, free strumming will make a whole lot of sense.
With the Air Guitar Move app, you can strum freely in the air AND actually make guitar noises. Simply connect the electronic pick to the iPhone, place your fingers on the screen to mimic chords and you're set! In addition to the free play mode, there's also an arcade mode. This lets you play to your favorite tunes like Guitar Hero by placing a certain number of fingers on the screen.
Having the Air Guitar Move app on you would be pretty epic especially when you get to use it on classic rock songs when you're at a bar. Plus, you won't look like a weirdo.