Blake Lively and Leighton Meester, celebrating their Nylon magazine covers with their Gossip Girl costars during an Armani Exchange-hosted dinner at Amalia in New York. The ladies were joined by their male counterparts, Penn Badgley and Chace Crawford, who sat at the dinner with some male buddies. While real-life couple Lively and Badgley didn't get too romantic at dinner, they did arrive (and leave) together, and whispered in each other's ears at the table. Also there: Michelle Trachtenberg, Jamie-Lynn Sigler and Zachary Levi.