If you go to Brooklyn, purchase a map first. Manhattan is easy to navigate since most of the streets are in a grid. Queens is a little more confusing because it uses street names instead of numbers. Brooklyn, on the other hand, is yet another example of how severe drug use can effect the city planning council. If you should enter Brooklyn without a map, don't bother asking the people you see on the street.
Chances are they are just as lost.
This island has expended considerable energy in an attempt to sever themselves from New York, and who can blame them. The only reason they have been unable to do so is that the public realizes the only other option is to be a part of New Jersey. To get to Staten Island one must either take the Verrazano Narrows Bridge or the Staten Island ferry. This ferry can provide hours of entertainment, provided you prefer slasher movies. This is a rather popular choice.