Not only has it become recent tradition for Paramount to release a yearly chapter in the Paranormal Activity saga, but it's just as much of a tradition that an audience reaction trailer to accompany the film gets released as well. Whether or not the "said" reactions are real or fake is kind of a moot point. I say who gives a damn because some of the reactions are funny as hell!
Look for the activity to continue on October 19th.
Source: the 'Bid