1. Acting in an exaggerated or fanciful manner: As a teacher, sometimes Mr. Hanks postured in front of his class as a way to get the attention of the students.
2. The process of arranging or positioning one's body: The model postured herself as she was directed by the artist.
3. To take or to assume an unusual attitude: The professor was posturing on the notion of free speech in order to challenge her students.
4. To behave in a way which is intended to impress or to mislead other people: Adam usually postures his anger by pretending to be content with what is going on at work even when it upsets him.