I have provided some language excerpts for those who are interested in hearing what the Bulu people sound like.
Tok Pisin is one of the national languages of Papua New Guinea. It is a common language that many Papua New Guineans speak so that they can communicate with other tribes with a different mother tongue. There are over 800 mother tongue languages so you could see why this language is pretty important for communication in Papua New Guinea.
The Bulu people speak their mother tongue "Bulu" as well as Tok Pisin. Many of them also speak or understand the neighboring language "Bola". Both Bola and Tok Pisin have had the New Testament translated into it but Bulu is not translated. I have no audio recordings in the Bulu language.