1. to adopt or strike an affected pose or attitude, especially to impress others
Usage: British spelling; somewhat formal

Examples

• The politician continued to attitudinise during the interview, never giving a straight answer.
• She would attitudinise whenever photographers were present.
• Stop attitudinising and just be yourself.
• The actor was known to attitudinise even in casual conversations.
• He began to attitudinise as soon as he noticed people watching.