Wei wu-wei is how a master of any skill acts... It seems almost as though he himself is not there at all and the desired effect appears of itself, be he an American football player, a mediaeval shrine carver or a master musician, writer or poet.
Also the pen name of a VERY wicked Irish gentleman yclept Terence Gray, whose influence on British theatre and ballet is by no means unmarked. Websites concerning him may be found here:
Definitions of 'doing without acting' can be found here: