To be proud and ready; have an imposing and confident stance (1970s+ Army)
I always do so at once; for the patient feels more at rest than if you stand tall up before her.
"There is enough clean loot in the world for you and me," she said, straightening to stand tall and splendid before him.
Stand with heels against the wall, and head high: "stand tall."
The recommendation to "stand tall" is more or less helpful, but there must be some qualification.
stand tall—Every Scout should be recognized a long way off, not only by her uniform, but by her erect carriage.
Two rules to remember are: "stand tall" and "Keep your spine long."
You make me afraid of you when you stand tall and grand like that.