Paris Hilton and Benji Madden Still Friendly

Paris Hilton and Benji Madden were dancing at the same party last night, but not the kind of dance-floor booty-shaking you might imagine.

They were doing the awkward-ex-trot!

Less than a month after splitting up, Panji arrived separately to the star-studded Dolce & Gabanna flagship boutique opening in Beverly Hills.  But while Joel Madden and Nicole Richie rushed past Paris on the red carpet, Benji stopped to put in his dues with the ex.  E! Online captures the scene:

'The usually photo-happy heiress waved off photogs as the former couple chatted cozily together. After grabbing drinks at the bar, Paris quickly approached Nicole to say hi, and then she and Benji headed out to the smoking patio for some more quiet conversation.

Both Paris and Benji looked happy and friendly as they hung together, but when asked if she and Benji were getting back together, all Paris offered was a knowing smile.'

A knowing smile??  Does Paris know something we don't??

Enjoy photos of Paris partying with Joel Madden, Nicole Richie, Lauren Conrad, Leelee Sobieski, Rachel Bilson, and Rumor Willis after the jump...