★ Thin clouds moved over the morning sky. The air was cool and humid; the sun hung around for awhile, making shadows fade in and out. The clouds thickened and rumpled. By afternoon it was chilly up on the roof. A young man held onto a walk/don’t walk sign and dangled from it for a photographer. His ankles were bare but he wore a knit hat. A couple of actors walked down Prince Street, hand in hand, with a camera and a crew retreating before them, undeterred by the lack of autumnal brilliance. The grays in the clouds, darker under lighter, gave way at sunset to an unexpected flood of pink.