For a single night each month, you can join Gary Ferrar, one of New York’s most sought-after entertainers, for a mind-bending evening of magic and mentalism. You gather around an antique pool table in an underground parlor to become part of an intimate experience that will leave you questioning what, if anything, is actually real. Mentalist and magician Gary Ferrar’s world premiere of NOTHING HERE IS REAL, directed by Harrison Kramer, has begun its residency and open-ended run at The Cocktail Lounge Below Tom Valenti’s Oxbow Tavern (240 Columbus Ave. at West 71 St.). Performances take place every last Tuesday