Affectation

With an air of nonchalance which, under the circumstances, seemed to me to border upon affectation, he lounged up and down the pavement, and gazed vacantly at the ground, the sky, the opposite houses and the line of railings.

Source: tatoeba (6303816)

I don’t see any content in his statements besides clowning, affectation, and pretentiousness.

Source: tatoeba (11994577)

This poem is strongly tinctured with those pedantic affectations concerning the passion of love ...

Source: wiktionary

[T]hey were not the spoiled children of affectation and refinement, but a bold, vigorous, independent race of thinkers, with prodigious strength and energy, with none but natural grace, and heartfelt unobtrusive delicacy.

Source: wiktionary