verb

Adopt or express a particular attitude or attitudes, typically just for effect.

her column is an exercise in smug attitudinizing

make-believe,act,putting on an act,acting,dissembling,shamming,sham,faking,feigning,simulation,falsification,dissimulation,invention,imagination,self-deception,play-acting,posturing,posture,posing,pose,cant,attitudinizing