Come to the Exploratorium and gather around the Pi Shrine to perform pi-related rites and eat ritual food, pie, in honor of this special number. The Pi Shrine is a small brass plate engraved with pi to a hundred digits located on the floor on the mezzanine level of the Exploratorium. This event is free with admission to the Exploratorium. Celebrants are invited to circumambulate the Pi shrine approximately 3.14 times, since pi is an approximate number. Other activities include adding beads to a ritual pi string, where each bead color designates a value for pi to over 1600 digits, and growing.
Music based on the number pi provides the ambience.
Most important of all, people eat pie. Lemon meringue, apple, peach, whatever. The public is invited to attend Pi Day. It would be nice also to bring along a pie to share. And as icing on the pie, March 14 is Albert Einstein's birthday.