A media adviser told him when he was very young that he needed more affectation.
From the time.com
They deliver their lines without affectation, with perfect timing and nimble wit.
From the bloomberg.com
Affectation like this makes good copy and, judging from Dillinger, bad movies.
From the time.com
Those who came into contact with him rarely failed to note his lack of affectation.
From the guardian.co.uk
German is her own language, and she uses it cleanly and without affectation.
From the nytimes.com
Once that fear falls away, the floodgates of affection and affectation open.
From the independent.co.uk
The z on the end of the name also strikes me as similar kind of affectation.
From the guardian.co.uk
The bohemian vibe is no affectation, but the product of a deeply held belief system.
From the guardian.co.uk
It wears its goriness like an affectation, so one is never truly invested in the tale.
From the usatoday.com
More examples
A deliberate pretense or exaggerated display
In the civil law tradition the patrimony of affectation is a patrimony, or legal entitlement, that can be divided for a purpose, as being distinct from the general patrimony of the person. ...
An attempt to assume or exhibit what is not natural or real; false display; artificial show; An unusual mannerism
A pretentious style of writing which is deemed unsuited to the form or subject matter.
A show, pretense, or display; Behavior that is assumed rather than natural; artificiality; A particular habit, as of speech or dress, adopted to give a false impression.