Dress Like a Star for Your Class Reunion

4. Heat up your smile with cool lipstick

Most celebs over 50 have veneers or do professional whitening treatments that involve high-concentration peroxide gels and laser or light at the dentist. While a regimen of at-home teeth-whitening strips, gels, rinses, kits and pastes may subtly improve stains — especially if you're a big coffee, tea or red wine fan — results are mild for mature teeth and require weeks, even months, of diligence. For an immediate fix simply swap any warm lipstick for a blue-based shade since cool tones counteract yellow champers. Choose from rosy or pink neutrals to rich berries, plums and chilly reds.

Oprah Winfrey enjoys every curve in a draped and ruched green gown; Barbra Streisand looks stunning in a black two-piece outfit.

KEVIN WINTER/GETTY IMAGES; PAUL DRINKWATER/NBCUNIVERSAL VIA GETTY IMAGES

5. Own your size and the way you have aged

Don't explain or apologize for your weight, gray hair, hearing aids or any other signs of change. You're way cooler and smarter — and self-confident about your looks. Skip the extreme diet. You don't have the same body you had in high school or college (and neither does anyone else there). You'll just end up cranky and irritable and feeling deprived instead of peppy and up. But do lay off the alcohol and sodium in advance since the resulting bloating of tummy or breasts, puffy face and under-eye bags will not enhance your selfies. Eat healthy and skip the extra snacks — your clothes and social media photos (there will be plenty posted!) will thank you.

Mira Sorvino wears a romantic ruffled little black dress, Kylie Minogue goes LBD glam, and Gloria Gaynor looks effusive with her signature long curly hair and a red sparkly tunic over black pants.

GETTY IMAGES (3), JESSE GRANT; DAVE BENETT; DANIELE VENTURELLI

6. Know the dress code, but be yourself

Let the venue, time, place and general theme lead the way but don’t buy something new unless it fits your real lifestyle. Besides, most likely no one has seen your wardrobe so it's all new! Being comfortable will boost your confidence. For a dressier night, you can't go wrong with a little black dress like Mira Sorvino or Kylie Minogue, or black dress pants with a tux jacket or a sparkly top like Gloria Gaynor.

7. Wear a conversation starter

You don't need a tattooed vine running down your arm or blue streaks in your hair — but if that's the real you, go for it!  Add something that provides an opportunity for introverts to comment and a "friend me on Facebook” opener for everyone else. How about a zebra print dress, an oversize statement necklace, or "wow" earrings?  Wear a scent that upgrades your mood and initiates a "you smell delicious, what is that perfume?" comment. Scent is a powerful people connector. Try an uplifting fragrance with summery notes like grapefruit, vanilla or coconut that transmit a feel-good vacation vibe throughout the festivities.

Jane Fonda in slim black pants, relaxed black boatneck poncho, full tousled bob, long gold chain necklace; Iman Abdelhamid in black jeans, purple ruched blouse, raspberry velvet blazer; Sandra Lee in sapphire blue velvet blazer, leggings, black ballet flats and white statement glasses

GETTY IMAGES (3), JOHN WOLFSOHN; DIMITRIOS KAMBOURIS; JOHN LAMPARSKI

8. Make ordinary extraordinary

More informal “dress casual” reunions call for day looks upgraded with accessories. Being overdressed comes across as trying too hard, especially if the get-together is at a cool bar or seaside bistro. Start with jeans (black, white, gray or blue) or everyday black pants and add a trendy transformational top. You can even sport faux leather jeans or leggings and just add a special jacket or blouse.

Thelma Houston shows off her fearless edgy style in blonde spiky short hair with dark roots, glowing cheeks; Suzanne Somers wears elbow sleeves and pale pink heels; Cicely Tyson shows off trim legs with jewel-buckle pumps and sheer black hose.

GETTY IMAGE (3), AMANDA EDWARDS/WIREIMAGE; HOLLYWOOD TO YOU/STAR MAX/GC; DANIEL ZUCHNIK

9. Flaunt it

Your brain and people skills are the catalyst, but do yourself a favor and show off something visible — still amazing legs and trim ankles, toned arms, great shoulders, shiny lustrous hair, mesmerizing eyes rimmed with liner, beautiful hands and elegant wrists stacked with rings and bracelets or fearless edgy style — whatever is your personal best.

Christie Brinkley in black leather jeans, gold booties, plaid blazer and T-shirt; Cindy Crawford in black leather jeans, leopard blouse and strappy heels.

GETTY IMAGE (2), GEORGE PIMENTEL; JULIEN HEKIMIAN

10. Body language is major

While ex-supermodels, dancers and actresses with a fitness obsession have this down cold, many real women don't know how to "work it!" Don't spend the party hunched over your mobile or slouched in a chair. In group shots, do the model cling — stand sideways and hug the person next to you, bend your near leg in (like you're trying not to pee) and laugh. Stand up straight, make eye contact, and smile (with eyes and lips). Look like you're having the time of your life and if you're not ... fake it until you make it.