Speakers use an estimated 1,500 conventionalized gestures. These are used in story-telling and reciting history, but also in situations not conducive to speech; when children are born deaf, or people go deaf later in life, the members have a system of communication available that will allow them to communicate with the entire community.
Binam Bikoi, Charles, ed. (2012). Atlas linguistique du Cameroun (ALCAM) [Linguistic Atlas of Cameroon]. Atlas linguistique de l'Afrique centrale (ALAC) (in French). Vol. 1: Inventaire des langues. Yaoundé: CERDOTOLA. ISBN 9789956796069. 9789956796069 ↩