The official language is Arabic. The majority of Moors speak Hassaniya Arabic, while black Africans in the south speak Pulaar, Wolof, and Soninke, among other languages (especially in the Guidimakha region around Selibaby). Many people still speak French. This is particularly true in the vicinity of towns. Individuals in the countryside may speak a variety of languages, but not French.
When entering a cab, workplace, or welcoming someone, it is customary to say Salaam aleikum. For most of the languages spoken in the area, it is the initial greeting.