"posturing" in the noun sense
adopting a vain conceited posture
"posturing" in the verb sense
1. pose, posture
behave affectedly or unnaturally in order to impress others
"Don't pay any attention to him
2. model, pose, sit, posture
assume a posture as for artistic purposes
"We don't know the woman who posed for Leonardo so often"
Source: WordNet® (An amazing lexical database of English)
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