Stephanie Pratt attempted to juggle her fair share of alliances during her "Hills" days; after all, trying to get along with her older bro Spencer Pratt (plus his wife Heidi Montag) while maintaining a friendship with his arch rival Lauren Conrad was no easy feat. Nevertheless, her multitasking skills will undoubtedly come in handy as she follows in Speidi's footsteps and goes for the grand prize on U.K. "Celebrity Big Brother."

Stephanie, showing off her carefree Cali style in a white two-piece ensemble and a braided 'do, made her debut on the reality program Monday night and exchanged pleasantries with her fellow competitors, who include actor Gary Busey and several British reality stars. Is a #Zankie type friendship in her future? At least one thing is certain: Her housemates better not aggravate the blond beauty.

"I don't really have any tolerance for people that piss me off," the former MTV star, who also recently appeared on the British TV series "Made In Chelsea," confessed during a pre-taped interview. "I'm never like, 'Okay, let's work this out.' I'm pretty much just like, 'Bye!'" Déjà vu of her tense quarrels with Brody Jenner much?

+ Do you think Stephanie has what it takes to prevail and bring a highly coveted B.B. win to the Pratt family? Wish her luck in the comments below!