Draw yourself up/rise to your full height

Pro Tip 1/3

Confidence Display

The phrase often shows one's self-assurance and confidence in a challenging situation.

Challenged by the debate opponent, she drew herself up to her full height and spoke with conviction.

Pro Tip 2/3

Physical Stance

It literally involves straightening your back and shoulders; the action complements the feeling.

He drew himself up to his full height as the national anthem began to play.

Pro Tip 3/3

Assertiveness

Used when someone displays dignity in response to disrespect or criticism.

Despite the scorn, she drew herself up to her full height and exited the room proudly.