I'll explain in details the differences between today’s modern spoken French, traditional book French and point you to a medium way of speaking which should greatly improve both your understanding and pronunciation of the contemporary French language.
In French, we call New Year's Eve "La Saint-Sylvestre" (pronounced "la sin(nasal) seal vay str") or "Le Réveillon du Nouvel An". Celebrated during the night of December 31st, we usually party with friends and/or family, in a more or less formal way. Let's see what French people do on New Year's Eve and learn the vocabulary.
Camille and I sometimes have students or friends from the US/Canada asking us about how we celebrate Thanksgiving in France. The short answer is "we don't" and that often comes to a them as a surprise... In this article, you'll find Thanksgiving French vocabulary as well as how to thank in French, and cultural notes about "le Jour de l'Action de Grâce(s)" as they say in Québec.