Go to Bowcraft.
http://www.bowcraft.com/you're guaranteed to have minutes of fun.
oh, and if you are in bayonne, go to CJs iceys and get a pistachio cream ice.
oh, and if you're by the GWB, go visit midget/murderous albino town.
oh, and if you're in Jersey City, visit the historic stanley theatre, where you can enjoy the hideous old extravagence of a movie palace AND convert to Jehovah's Witness.
that's basically all there is to do here.