this guys name was Njege. He travelled to the states in search of more knowledge..he met a sweet lady..Njeeri..and married her. they were blessed with two children.1.Gikuyu and 2. Mumbi.
after 8 years he decided to go and visit his aging mother this time around 86 years old. he thought it was good the mother met his children and the children met their grand mother.
This is how the converstion was
Cucu-Muriega?(how are you)
Gikuyu and Mumbi-KI! (no response)
Cucu-Haiyaii, ii Njege kai ciana ici ciaku itari hadafu..
Njege-No gukorwo matiraigua gikuyu
cucu-hi hi hi-Habari?
Gikuyu and Mumbi-KI(no response)
cucu-Yukani,
aya ona githungu matiuii 
(this children dont even know english)
cucu-riu okorwo nginya matingiaria githungu ri, me kwenda twarie ruga iriku?
the most parmanent thing in this world is change