11/17/2009 AT 12:00 PM EST
An "adorable" Lauren Conrad
joined pal Frankie Delgado
at his table during a night out at Voyeur in L.A. Surrounded by female friends, the former Hills
starlet drank a few glasses of champagne as she laughed and people-watched all night. Conrad was also busy on her BlackBerry, sitting down low and trying to remain low-key. Delgado, meanwhile, was wilder, pouring vodka right into his friends' mouths. The club promoter was the life of the party, entertaining his friends while Conrad snuck off before 1 a.m. Also at Voyeur that night: Lindsay Lohan
, who continued her partying binge.