The Big Little Lies star added height to her petite 5ft1in frame with a pair of crushed grey velour pointy-toed heels.
The talented producer tied back her platinum blonde hair into a loose ponytail and showed off a pair of glittering diamond hoop earrings.
Reese kept her make-up demure with a classic black winged eyeliner and pale pink lipstick.
Perusing the shimmering displays, the actress sat down with a host of women at the flagship store.