The look of their faces confirmed this view, for nearly all were set and purposeful and strained, as men who have serious work in hand; not soulful, not tense with emotion, but simply expressive of concentration. With few exceptions there was nothing of the joy of life in those faces, the rapture of music or of motion. They meant business. And this was the only thing that could absolve many of them from the charge of public indecency; for it was clear that their motions and the manner of their embraces were not the expression of licence or affection so much as matters of technique.