Try as we might to stay true to HP Sauce and the Super Bowl, living as an expat in France will mean you eventually take up the customs of your Gallic hosts.
While time is a factor, the folks that have been here since May 1968 have just become more French by default, some people go totally native because they love it here.
So The Local has devised a test to see just how French you've become. Here's the score chart.
20,000 points or more: Forget about it François, you've gone native
15,000 points or more: Might be time to head home for a visit
10,000 points or more: The French amuse and confound you
5,000 point or more: I know how to say 'Oui' and 'Merci.'