One could never mistake Mischa Barton for a groupie. When her boyfriend, Whitestarr frontman Cisco Adler, played the Roxy in L.A., she spent the time chatting with friends, playing with her Sidekick and barely watching the show. "Every time Cisco would look over at her, she was not even paying attention," says an observer. "It was hard to tell if she was just trying to play it cool or if she was bored out of her skull." The O.C. star did give her beau one sign of acknowledgement, however. When Adler gave her a shout-out from the stage, saying, "Hey baby doll," she responded with a sheepish wave.