Meaning : Affected manners intended to impress others.
Example :
Don't put on airs with me.
Synonyms : airs
Meaning : A posture assumed by models for photographic or artistic purposes.
Meaning : A deliberate pretense or exaggerated display.
Synonyms : affectation, affectedness, mannerism
Meaning : Pretend to be someone you are not. Sometimes with fraudulent intentions.
Example :
She posed as the Czar's daughter.
Synonyms : impersonate, personate
Meaning : Behave affectedly or unnaturally in order to impress others.
Example :
Don't pay any attention to him--he is always posing to impress his peers!.
She postured and made a total fool of herself.
Synonyms : posture