fidgeter

Anyhow, the man in front of me was a fidgeter.

Exercise, walk, be a fidgeter.

Lurhman was a fidgeter, but when she was presented with a meaty problem all that nervous energy was channeled into solving it.

Buck suggested that the surname derived from the Middle English word Fike or Fyke meaning "to fidget" - in other words, "John the Fidgeter" or perhaps more colloquially, "John the Restless".

Der Zappler: der körperbehinderte Jürgen erobert seine Umwelt; ein grosses wagemutiges Abenteuer ("The Fidgeter: The Physically Handicapped Jürgen Conquers His Environment; A Great, Daring Adventure").