I'd start off by reading a good guidebook.. I love the Eyewitness Guides. The main thing to know about Paris is that people will be friendly and kind if you know just the basic words of politeness in French.. hello, thank you etc. It goes a long way with Parisians. There are tons of restaurant suggestions on www.chowhound.com (International section). Just read down the list or do a search with Control F. There are so many good places to choose from (my current dilemma). Have a great trip!