Ladies Night Out, 6-10 p.m., with fashion show (8 p.m.), food and entertainment at Islandia Marriott, 3635 Expressway Dr. N.; 631-667-3976. No admission fee; guests are asked for a donation to the West Islip Breast Cancer Coalition at door.
Fouy Chov trunk show, couture ensembles and gowns (designer visit Aug. 2 and 4), at Mieka, 8285 Jericho Tpke., WoodburyCommon, Woodbury; 516-367-8755. Discounts on show orders.
UJA Federation of New York Hamptons Trunk Show hosted by designer Ramy Sharp features designer clothing (women's, men's and children's), jewelry, accessories and more, 10 a.m.-5 p.m., atBridgehampton Historical Society, 2368 Montauk Hwy. Tickets: $36; $54 (9 a.m. admission); also available online; ujafedny.org
Bony Levy fine jewelry trunk show, including yellow diamond and bridal collections, 11 a.m.-6 p.m., at Nordstrom, Roosevelt Field; 516-746-0011, ext. 1290.
Vera Wang bridal trunk show, new 2013 collection, at The Wedding Salon of Manhasset, 1468 Northern Blvd., Manhasset; 516-869-8455. By appointment only.
Maud fine jewelry trunk show, 4:30-6:30 p.m., at Turpan, 55 Main St., East Hampton; 631 324 2444. Sponsored by vbeauté, with 10 percent of proceeds to benefit Africa Foundation.
Book a seat for a complimentary master class with La Prarie cosmetics skin and color experts, 11 a.m. and 3 p.m., at Bloomingdale's Roosevelt Field store; 516-873-2821. Guests receive deluxe skin care samples.
Sottero and Midgley bridal trunk show, by appointment only, at Helen's Bridal, 50 Austin Blvd., Commack; 631-543-6300.
Wear your best hat to Polo at the Park for a contest and chance to win VIP tent privileges at a future match ($125 value) at Bethpage State Park; 631-345-9585. Gates open at 2 p.m. Admission is $5 (under 12 free) plus $8 State parking fee.