attitudinizing

(British, English, Oxford, US, transitive) To cause (someone or something) to assume an attitude or pose; to pose, to posture.
(British, English, Oxford, US, transitive) To give the appearance of, or make a show of, (something) by assuming an affected or exaggerated attitude.
(British, English, Oxford, US, intransitive) To assume an attitude or pose, especially one which is affected, exaggerated, or unnatural; to posture, to posturize; also, to excessively practise adopting attitudes or poses.
(British, English, Oxford, US, figuratively, intransitive) To create art, speak, or write in a manner which assumes affected, exaggerated, or unnatural attitudes.