Below are a few ideas:
Take a walk across the Brooklyn Bridge or a boat ride on the Staten Island Ferry.
Ride bikes or a carousel.
Row a boat or ice skate in one of NYC’s many parks.
Ever been on an indoor ferris wheel ride? Visit Toys R Us or ride the Wonder Wheel in Coney Island and see the city at night.
See a baseball game, be it the Brooklyn Cyclones, Staten Island Yankees or the professional Mets and Yankees . . . there’s basketball, hockey and football too!
Eat! Hot dogs, ice cream, ices, pizza, bagels, and the multitude of ethnic foods from around the world located within each neighborhood…
Shop, be it to buy or window shop. New York offers anything and everything you can imagine!
And of course, visit the many museums, Broadway, Lincoln Center, architecture, parks, and neighborhoods of New York

Below are links to more ideas and information on our city:
www.visitbrooklyn.org
www.brooklynexposed.com
www.asliceofbrooklyn.com
www.centralpark.com
www.metmuseum.org
www.amnh.org
www.brooklynmuseum.org
www.tenement.org
www.tdf.org (Discount Theater tickets) or www.schooltix.com
www.statueofliberty.org