Yoko Ono's art exhibition, This Is Not Here, occupied the entire Everson Museum at Syracuse University from October 9th (John's 31st birthday) through the 27th, 1971. John and Yoko, along with museum director Jim Harithas, held a press conference at the Hotel Syracuse on October 5th to promote the event.
Yoko also gave some remarks and fielded questions at the museum on October 8th, the day prior to the opening. The next day, John looked on like a proud parent as the crowds explored and participated in Yoko's pieces.
Late that night, John's birthday was celebrated with a singalong party in their suite at the Hotel Syracuse, attended by Ringo and Maureen Starr, Phil Spector, Klaus Voormann, Allan Ginsberg, and Jonas Mekas, who shot a bit of footage:
John, Yoko, and Mekas participated in a bizarre (even by their standards) television show a few days later, apparently to promote the gallery show. Taped October 14th at a Syracuse TV studio, the program was 64 minutes of television without form or narrative, consisting of audience participation pieces culled from Yoko's career, extracts of her films, and exercises from Grapefruit, all tossed together in a surreal fashion. The result was aired on the WNET (public TV) series Free Time, to the bafflement of all: