Tending to her business affairs, Audrina Patridge was spotted coming out of a Los Angeles office building yesterday afternoon (October 29).

The “Hills” hottie looked focused as she made her way to her car, carrying a composition book and her mobile phone as she strolled past the paparazzi.

The night before, Audrina was all about checking out the premiere of “The Boondock Saints 2: All Saints Day” at the ArcLight Cinemas in Hollywood.

And in related news, a group of teenage girls have been arrested for the burglaries that involved property stolen from Audrina as well as Lindsay Lohan, Ashley Tisdale, Paris Hilton, and Orlando Bloom.