If you throw yourself at the ground and miss, you’re flying.
Flying

Flying is the action of being sustained above the ground without falling. Although considered one of several "recreational impossibilities", Arthur Dent learnt to fly and flew on Krikkit daily. He also flew with Fenchurch. The Hitchhiker's Guide to the Galaxy has a large section on the subject of flying, which details exactly how to master the art of flying. According to the Guide, the main thing that flying requires is the ability to throw yourself at the ground and miss. It says to throw...

Hitchhikers
And the next night, try doing it again with Sony Walkmen.