It’s in the walk.
Picture the following Hollywood stars in your mind’s eye:
Mae West, hands caressing her Rubenesque hips, head tilted, not just sauntering but oozing forward to devour all who cross her path.
Jimmy Cagney, elbows cocked, moving with concentrated energy, he propels himself like a coiled spring.
Joan Crawford, leading with her linebacker shoulders, strides across the screen determined, dangerous, unstoppable.