HALLOWEEN PARTY FOR 2ND AVE.

The Second Avenue Business Association is hosting a Halloween block party on Nov. 1 to help ailing businesses affected by subway construction. The group, comprising 38 merchants between East 91st and 96th streets, is throwing the party to raise awareness to the â??SOS: Save Our Stores campaign. The event, which starts at 11 a.m. and ends at 4 p.m., will feature a Halloween parade and costume contest. Activities include a magic show, karate exhibition and face painting, with a food tasting from different Second Avenue businesses for parents. --Dan Rivoli