Juggling ...

The juggling is the art of manipulating objects with dexterity. Or run a complex gesture, dealing with difficult situations and unstable without losing the domain and control, using one or more objects, where the handling methods are not mysterious (as in the illusion). It is one of the most typical of circus arts, though not necessarily related to it in its historical reasons. The origin of the Juggling is uncertain, but there are records that indicate that an art practiced since antiquity.

And besides being a great workout!! It's tip for those who find the gym a dull thing!!