The groups change more swiftly, swell with new arrivals, dissolve and form in the same breath; already there are wanderers, confident girls who weave here and there among the stouter and more stable, become for a sharp, joyous moment the centre of a group, and then, excited with triumph, glide on through the sea-change of faces and voices and colour under the constantly changing light. Suddenly one of these gypsies, in trembling opal, seizes a cocktail out of the air, dumps it down for courage and, moving her hands like Frisco, dances out alone on the canvas platform. A momentary hush; the orchestra leader varies his rhythm obligingly for her, and there is a burst of chatter as the erroneous news goes around that she is Gilda Gray’s understudy from the Follies. The party has begun. I believe that on the first night I went to Gatsby’s house I was one of the few guests who had actually been invited. People were not invited—they went there. They got into automobiles which bore them out to Long Island, and somehow they ended up at Gatsby’s door. Once there they were introduced by somebody who knew Gatsby, and after that they conducted themselves according to the rules of behaviour associated with an amusement park. Sometimes they came and went without having met Gatsby at all, came for the party with a simplicity of heart that was its own ticket of admission. I had been actually invited.