I'm going with a friend on a slow group scenic ride (30 miles) Sunday who's a little apprehensive about riding in the city (NYC). So my genius plan would be to rent a tandem though neither one of us did before. I'm a big guy and she's pretty small so I'm not worried about keeping it stable but I have no idea how to ride one (besides the obvious ).
What are some things I need to keep in mind? Safety concerns? Things to look out for or be extra cautious about? Any gems of knowledge that will keep us from becoming cab food?