Studied nonchalance? Only apparent indifference.
The magician showed much sprezzatura as he performed his act with ease. It is as though it comes to him naturally (UD)
Alisa Brough, 2006:
Elizabeth Tudor, Queen of England, weaves the courtier[alpha]s strategy of sprezzatura throughout her public orations in order to help her identify with her audience of courtiers, scholars, and politicians.
… R. J. Clements has pointed to a contextual – or associative and lexical – field of meaning for sprezzatura: "Within lightness of touch, easiness of manner, effortless deftness, the semantic value of sprezzatura is somewhere in the area." … sprezzatura upholds the presumption of a righteous superiority vis-a-vis anything different.
(Giancarlo Maiorino, The Portrait of Eccentricity: Arcimboldo and the Mannerist Grotesque, p.19 from GoogleBooks)