BLOOMINGDALE'S PREVIEWS EILEEN FISHER for fall with a fashion presentation, vendor reps and personal shoppers, noon-3 p.m., at the Walt Whitman store; 631-425-6916. All stores are displaying a "Good Deeds" wall with information on the Foundation for AIDS Research. Bloomingdale's is donating $75,000 to the cause.
MEET ERIKA KATZ, author of "Bonding Over Beauty," and hear about fun, beauty-based activities mothers can share with tween-age daughters, 5-7 p.m. at BookHampton, 93 Main St., Southampton. There's a make-at-home beauty recipe demo and feather-hair extensions for the girls. Get a free gift bag with a purchase of her book.
RELAX AND BREATHE as Cary Caster, co-founder of 21 Drops, a line of essential oils, discusses the benefits of aromatherapy, noon-4 p.m. at White's Pharmacy, 81 Main St., East Hampton; 631-324-0082.
BLOGGER ERICA DOMESEK of P.S. I MADE THIS . . . leads free, interactive DIY beauty crafting sessions, 3-6 p.m., at Ruschmeyer's Hotel, 161 Second House Rd., Montauk; 631-668-2877. Learn how to personalize makeup cases, create necklaces, do you own "moon" manicures and more. All guests receive a gift bag.
FAIR TRADE HandCrafting Justice, a nonprofit group marketing items handmade by women in developing countries, sets up shop in the auditorium at Most Holy Trinity Church, 57 Buell Lane, East Hampton; 718-204-0909, ext. 14. Sale items include bags, girls' smock dresses, scarves and jewelry. Hours are 5-7 p.m. Saturday and 7 a.m.-1 p.m. Sunday.