Enjoy the city's skyline by walking along the pier. We highly recommend walking around Jane's Carousel. Take that iconic shot of the Manhattan Bridge (the one we used for our Save the Date), go to TimeOut Market to try all types of food, and if you're up for some exercise, walk the Brooklyn Bridge!
If you're staying at the Hampton Inn Downtown Brooklyn, check out this food hall. About a 8 minute walk, you can try out the hottest NYC restaurants (ie Katz, Alidoro, Brooklyn Wine Cellar, etc)