You can button it and tuck it — or not — wrap it, push up the sleeves or stretch it into a dress. Yes, one can do a lot with a shirt and Sir Paul Smith explored myriad possibilities in a breezy, likeable collection that was part dandy, part pajama party. He opened the show with a smashing white double-breasted tuxedo, and blazers and jackets were also key protagonists in the boy-meets-girl universe this British brand exemplifies. It was as if the Paul Smith woman took fashion cues from her rocker boyfriend: a colorful, jaunty fedora on her head; feet shod in leopard-print loafers or glossy Chelsea boots. But the filmy fabrics and sugary — or searing — colors kept the mostly top-and-pant combos feminine and individual. The designer also served up an array of appealing shirt and tank dresses that were long and loose in flowing silks and gently sashed at the hips.