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If Lauren Conrad was at the doctor's office, or getting her car washed, I can understand why she might be covering her face, but if you're a celeb strolling down Robertson Blvd for a little retail therapy, you're totally fair game for the paps!

Yesterday Lauren stopped by Intermix, and rather than making a series of sour faces like she usually does, she covered up her mouth like she had something to hide. A zit? A cold sore? Or is she STILL pretending that she doesn't want to be photographed?