draw yourself up/rise to your full height

draw (oneself) up to (one's) full height

To stand up straight, often to project confidence or prestige. People would be more apt to take you seriously if you drew yourself up to your full height instead of hunching over all the time.See also: draw, full, height, up

rise to (one's) full height

To stand up straight, often to project confidence or prestige. People would be more apt to take you seriously if you rose to your full height instead of hunching over all the time.See also: full, height, rise

draw yourself up/rise to your full ˈheight

stand straight and tall in order to show your determination or high status: When the sales assistant said he couldn’t help her, she drew herself up to her full height and demanded to see the manager.See also: draw, full, height, rise, up