How to use "lean" in a sentence

I tried to stand up but my legs were so weak that I had to lean against a chair

Male dancers, wearing black tuxedos for the opening number, stood tensely, an eye-pleasing collection of lean, handsome types.

Michael was lean and blond, with eyes nearly as blue as Tina's

As he entered her, she let her hands travel over his body, along his lean flanks.

Billy Sandstone was in his late thirties, as small and lean as a jockey, and his watchword seemed to be "neatness." His shoes shone like black mirrors