New Brunswick is Canada's only officially bilingual province, so everything is shown in English and French. For example, a stop sign will have both "stop" and "arret" written on it. Most of the French-speaking people in Moncton are Acadians, and Acadian culture is a very big part of New Brunswick. Most Acadians and many other people are bilingual.
When in Moncton, you will hear something called La Chiaque, which is a French/English patois local to the area. English will be filled with French words, and French will be filled with English. Be prepared to overhear things like, 'Mon truck, il flippez off la road about trois miles back.'