Juggling
From Memory Alpha, the free Star Trek reference.
Juggling is the skill of keeping several objects in motion using one's hands. It is sometimes considered an artform similar to dance, and is often practiced before an audience as a form of entertainment.
The Juggler was a character featured in a holodeck holoprogram that simulated the Parallax colony. He practiced the art of juggling. Lwaxana Troi introduced Alexander Rozhenko to this holodeck simulation of the colony in 2368. (TNG: "Cost of Living")
Ensign Pablo Baytart, a Starfleet officer aboard the Federation starship USS Voyager, was a skilled juggler and was one of the first featured guests on A Briefing with Neelix in 2372. In his appearance he juggled a collection of PADDs, hyposprays and phasers. (VOY: "Investigations")
