Accessories are key so invest heavily in shoes and watches.
Perfumes follow, preferably something ethereally obscure from Dipthyque or L'Artisan Parfumeur.
Kit yourself out at Merci (111 boulevard Beaumarchais, +33 01 42 77 00 33), the cult concept store near the Bastille, or at the style emporium Colette in the rue Saint Honoré (No. 213; +33 1 55 35 33 90).
Adopt a younger lover for illicit coffees in the romantic backstreets of the Left Bank, and use a Vélib (hired bike) to get around, no helmet of course.
6. How to dress -- men
Like the iconic existentialist pinup, Albert Camus, turn up your (black) coat or jacket collar, stick a Gauloise in your mouth and puff away -- or pretend to.
Smoking is still cool and even in deep midwinter pavement café heaters cater to the inveterate nicotine fiend, environment be damned.
Serge Gainsbourg is another defunct role model, a poetic, rock 'n' roll roué who managed to sing with a cigarette drooping from his lower lip and stiff drink in hand.
The Parisian celeb not to model yourself on is Johnny Hallyday, a perma-tanned crooner of beyond pensionable age.
7. Shun the suburbs
Only stay intramuros
No respectable Parisian lives outside the city, as the very word banlieue (suburb) brings shivers to their stylish souls.
The faubourgs, once looked down upon as too prolo (proletarian), are now considered ultra-hip, with more space at less cost.
If you decide on an extended stay, first-floor apartments with high ceilings are tops, though a fifth floor walk-up is perfectly acceptable. Kitchens aren't important, as you always eat out.
8. Learn to be a flâneur, i.e. stroll aimlessly
You need no specific goal to your day, just cruise the boulevards, bookshops and cafés or drape an arm around your girl/boyfriend on the banks of the Seine.
In summer, stretch out on the sand of Paris Plages to show off your toned body and ogle others.
Never stroll along the Champs Elysées, which is only for non-Parisians and people eyeing up big cars.
Favored "bo bo" (bourgeois bohemian) ambling areas are the Marais, Canal Saint Martin and République.
The Left Bank's Saint Michel is for students and tourists, while Saint Germain is for aging artists and moneyed "intellos" (intellectuals), à la Bernard-Henri Lévy.
9. Get something going on the side
You may not be in town long enough to pull it off, but attitudes toward sex are liberal in the extreme, so you might follow the example of Parisians who commonly have lovers.
Women generally cultivate younger or married men -- the expression "de cinq à sept" (from 5 to 7 p.m.) refers to such after-work activities.
President Francois Mitterrand had a mistress holed up with their love-child in an official apartment for years.
Jacques Chirac was known for a string of affairs, while even bland François Hollande doubled up on the mother of his children.