Mmmm.....good luck!!

Whatever you do, do NOT attempt to speak French to them. No matter what people say to you about "trying to speak the local language", the Parisians will HATE you for it if your French is crap.

Go to the Louvre (if you can get in what with the Da Vinci Code etc), Eiffel Tower, Pompidou centre and whatever else you can cram in.

Watch out on the Metro for pick pockets!