HAPPENIN’ OTSEGO for THURSDAY, AUGUST 31 Audition For The Catskill Choral Society Winter Season AUDITIONS—5 p.m. Catskill Choral Society holds auditions for the coming season, set to feature performances of Handel’s “Messiah” on 12/1 and 12/2. By appointment only. Unitarian Universalist Society Chapel, 12 Ford Avenue, Oneonta. (607) 435-7008 or visit www.catskillchoralsociety.com BLOOD DRIVE—Noon to 5 p.m. American Legion Post 259, Oneonta. Register at RedCrossBlood.org…