HAPPENIN’ OTSEGO for TUESDAY, AUGUST 1 Opening Day At The Otsego County Fair OTSEGO COUNTY FAIR – 8 a.m. Gates. Buildings open 10 a.m. Open to 9 p.m. Adimission $1 for the first day only. Fair Grounds, 469 Mill St., Morris. Visit www.otsegocountyfair.org WALKING TOUR – 7 p.m. Tour the historic property of the Emmons Farm with the Greater Oneonta Historical Society. Begins at The Farmhouse at emmons restaurant, 5649 St. Hwy. 7, Oneonta. Call (607)432-0960 or email info.Oneonta History.org or…