03/30/2012 at 06:00 AM EDT
breezed onto the patio of West Hollywood's Chateau Marmont holding a martini and ready for a night out. The single actress
and a male friend, who wore a suit, were escorted past hotel staff to a table far in the back of the patio. She wore a black and white striped maxi dress and a thick gold cuff.
They both had drinks in hand, according to an onlooker. Cox was smiling, the onlooker tells us, and pulled her hair up into a high ponytail as she enjoyed her evening at the hotel, sticking around past midnight.