Free. (Field 2, 1899 Hempstead Tpke., East Meadow; nassaucountyny.gov , 516-572-0200). People dance to the live band at Mulcahy's in Wantagh. Credit: Howard Simmons Doubleheader at Mulcahy's New Age Bingo Loco with dance-offs, rave rounds, lip sync battles, throwback anthems, ...