Practical tips for travellers
Metro - always cheaper to get a 'carnet' or tickets. Look for your destination on the map and find the end of the line (not like London where lines are all Northbound, Southbound, Westbound etc).
Distances between metro stations are really small. Anything up to 3 stops and we usually walk. It's nicer to see things above ground anyway.
But the white and blue tiles are worth seeing in some of the older stations and the Metropolitain entraces are iconic if you can find any.
Cinema: Buy a Pariscope (50c) to see what's on. Fantastic range in hundreds of small cinemas around town. If languages are not your forte, look for v.o. (original version) rather than v.f (French version - dubbed).
Arrondissements: most Parisians talk of places being in the 5th, 1st, 18th etc. Start to get familiar with what's in whuch and you'll relax into the Parisian-speak more easily.
August: lots of places are closed, especially small shops and many coffee shops etc.
Bonjour! - many officials like you to begin any query with 'Bonjour'. Don't begin your question to that nice gendarme with 'Do you know where the Eiffel Tower is?' Always begin: 'Bonjour! Where is the Eiffel Tower?'. He or she will only reply once he has said Bonjour himself, and some wait for you to do so!
Handy shopping tips for visiting anglophiles: Shakespear & Co for EN language books; been an institution for decades. Monoprix for basics of anything from food to thermos flask or cheap clothes.