verb (used without object), at·ti·tu·di·nized, at·ti·tu·di·niz·ing.
Examples from the Web for attitudinize
A jay would alight in the entrance of the hole and flirt and peer and attitudinize, and then flyaway crying "Thief, thief, thief!"Birds and Bees, Sharp Eyes and, Other Papers|John Burroughs
Ma then got up and began to attitudinize, singing a plaintive air like the girls with the turbans.
Then Ma, seizing a sword, began to attitudinize, smearing his face all over with coal-dust.
He was compelled the while to attitudinize incessantly as a genius.Art in England|Dutton Cook
A bird seldom sings when watched, and Nature is no coquette, and will not ogle and attitudinize when stared at.Our Friend John Burroughs|Clara Barrus