Even in the dark...
... they know it is "mondele" = "the white" who is riding her bike. No idea how! And I tell you, if you want to know what the darkness is, either go to the desert or … to Basankusu! Even if you are in the middle of the village, you cannot see anything! 1000Km around with nobody with electricity! I was once with my broken bike (the pedal broke...congolese quality) and the battery of my lamp was dying... Fortunatly I had to go straight to come to my place! Otherwise I would have had to read the stars... which I have no clue!!! (but it is how people does here!)