Mena Suvari must be keeping a low profile. When the “American Beauty” star showed up to Svedka’s alice + olivia presentation at a loft in the Meatpacking District, the door sentries didn’t recognize her. “She was standing there, waving her hands,” says a spy. “Finally, someone working the event saw her and let her in.” Once inside, Suvari mingled with actor Adam Bertrand, Ashley Greene of “Twilight,” AnnaLynne McCord of “90210,” and new AOLstylelist.com contributor Fabiola Beracasa, who scaled a 4-foot wall to get in rather than wait in line.