Bloody Mary, Bloody Mary, Blood, In anticipation of the Blu-ray and DVD debut of the record-breaking, blockbuster hit Paranormal Activity 3 on January 24th, Paramount Home Media Distribution is inviting fans to get into the proper state of mind by daring them to a game of “Bloody Mary.”
As darkness falls on Friday, the 13th of January, fans can summon the eerie presence and then post about their experience on the film’s Facebook or Twitter page.
Demonstrated to terrifying effect in the film, the game is played by turning off the lights and saying “Bloody Mary” three times into a bathroom mirror.
To get you further inspired for the dare, here is a clip from the Blu-ray/DVD combo pack, that includes both the theatrical veron of the film and an unrated veron with footage not seen in theaters, as well as Lost Tapes that reveal more footage.

Source: HorrorBid