"I'M 40 NOW, BUT my plastic surgeon tells me I look like I'm 30," jokes Jack Mackenroth, a former "Project Runway" contestant who will be in town Sunday taking part in the AIDS Walk.

"I've been positive longer than I've been negative," says Mackenroth, who was diagnosed HIV-positive 20 years ago. His appearance is on behalf of Merck's Living Positive by Design HIV-education campaign.

"We're trying to fight the stigma of HIV through visibility," he says.

As for "Project Runway," which airs on Lifetime, Mackenroth says he doesn't feel there's a standout this season, unlike Christian Siriano, who won in 2008, the year Mackenroth was on the show. "I think they weeded out most of the clutter. Everyone who's left is fairly talented," says the fashion designer.

Mackenroth will speak before, and then walk in, the event. Proceeds will go toward the AIDS Fund, which supports 30 HIV organizations in the Delaware Valley. For more info on his campaign, visit LivingPositiveByDesign.

com. For details about the walk, see aidswalkphilly.org.

Reese filming at Temple AmblerReese Witherspoon will be on Temple University's Ambler campus tomorrow being filmed playing softball for an untitled James L. Brooks comedy.

Don Polec back on 6ABC. SortaDon Polec is back on 6ABC. The longtime features reporter, who left the station earlier this year, is now syndicating pieces to stations around the country. "Action News" just aired two features by Polec, one about farming oddities and one about the Stoogeum, a Blue Bell museum devoted to the Three Stooges.

Out and about* Flyers Jeff Carter, Ray Emery, Scott Hartnell, Danny Briere, Riley Cote, Mike Richards, Chris Pronger and James van Riemsdyk sat together in section 236 of Lincoln Financial Field for the Eagles/Buccaneers game. Carter and Emery bought a round of beers from a vendor and tipped him nearly $50. The Flyers were also happy to sign autographs for kids during the game.

* Samantha Ronson, DJ and on-again, off-again girlfriend of Lindsay Lohan, and friends stopped by Zee Bar (100 Spring Garden) Friday night after spinning at Tavern on Broad (Broad & Walnut).

* Bucs linebacker Matt McCoy dined twice Saturday. First he went with teammates Quincy Black and Niko Koutouvides for fried oysters, shrimp cocktail and filet at DelFrisco's (15th & Chestnut) and later turned up at Davio's (111 S. 17th) with Eagles offensive tackle Todd Herremans and a few ladies. Both were celebrating birthdays and went for steaks. McCoy paid and tipped very generously.

* Jocks Andre Iguodala, Brent Celek and Stewart Bradley and Fox 29's John Bolaris were at G Lounge (111 S. 17th) Friday night partying with Wired 96.5's G-N Kang and her teammates on Philadelphia Passion of the Lingerie Football League.

* Darren Daulton caught comedian Billy Gardell at Helium (2031 Sansom) Saturday night, along with Comcast SportsNet's Michael Barkann and wife Ellen, who is doing marketing work with the former Phillies catcher. Dutch got a lot of attention from the ladies at the club.

Bacon Bros. raise Mummer$Center City-raised Kevin Bacon and brother Michael, who perform together as the Bacon Brothers, signed about 200 of their "New Year's Day" benefit CD/DVDs for fans Saturday at Main Street Music (4444 Main) during the Homegrown Manayunk Fall Festival. The pair raised nearly $4,000 for the Save the Mummers Fund and enjoyed tomato pie from Marchiano's (4653 Umbria), which donated $200 worth to keep the Bacon fans full and satisfied.

Buena suerte, ReginaGood luck to Daily News reporter Regina Medina, who's up for Favorite Newspaper Writer at the Hispanic Choice Awards tonight at the Kimmel Center.

Family mattersCongrats to Andrew Pack, executive director of the local chapter of Variety, the Children's Charity, and Angela LeBedis, sales/marketing boss at GFK, a pharmaceutical-research company, who got engaged recently. Pack, 37, lured LeBedis, 33, to the Loews Hotel, saying there was a cocktail party, and instead there was a suite with lots of flowers and where Coldplay's "Fix You" was playing. Pack proposed and after the desired reply, they toasted with champagne and dined in the suite.

Visit PhillyGossip.com for Dan's latest updates.or follow PhillyGossip on Twitter. Have a tip? Call 215-854-5963, or e-mail grossd@phillynews.com. For recent columns, visit go.philly.com/dangross.