English is the official language of Nigeria. That may seem comforting, but Nigerian English may be very different. Most Nigerians use pidgin English, which may differ significantly from standard English owing to the inclusion of local slang and accent.
Consider American Creoles in the Louisiana area, or the exaggerated (but well-known) Jamaican pidgin English. Understanding Nigerian pidgin English may take some time for the unaccustomed ear, but it is certainly doable, not to mention fascinating, as learning a new language is frequently. Asking questions is the simplest method to overcome any first language barrier. They will not be shy about asking you to explain what you mean or admitting that they do not comprehend an outsider’s specific way of wording. Do not assume that a Nigerian’s failure to respond reflects ignorance. Remember that at first, your English will be as difficult for them to comprehend as theirs will be for you. The static will clear and mutual understanding will begin after you both adapt to a fresh rhythm of English.
In Nigeria, hundreds of African languages are spoken. The three most often spoken are Hausa, Yoruba, and Igbo.