Chug your beer: Every time something completely ludicrous is happening on screen.
Try to stay upright: Through the part where Jenny, the hot blond stripper, decides to fuck a retarded guy she hung out with in elementary school.
After an hour straight of chugging, experience the terror: Of watching Forrest Gump from a cognitive vantage point that is as impaired as Forrest'.
Realize quickly: That as a retarded person you now find the film offensive because despite all of the awards it won, Forrest Gump is really just one long retard joke.