Eat, drink, and be scary.
Check into bars at this Atlantic Ave pub crawl. Prizes for costumes and drinks specials should make the night a little less scary (or more depending on the person). Other stops include Montero's, Chip Shop, Last Exit, Waterfront Ale House, The Brazen Head, Bijan's Brooklyn, Two8Two, Mile End, Krescendo, Building on Bond, Brooklyn Tavern and Hollow and Nickel.
Pre-signup is free on the site. 2 dollars on the day.