Samburu Tribe? Shepherd on the side of the road from Marsabit to Archers Post. This is an incredibly common sight on so many levels: A child tending livestock. Tending livestock on the side of the road/highway. Waving hello to passing strangers.
Family walking on side of the road. Another very common sight are people sitting/standing/walking on the side of the road, seemingly in the middle of nowhere.
Boy on the side of the road from Marsabit to Archers Post. These yellow containers are seen everywhere. Originally they contained cooking oil, but are reused to haul water from wells or rivers. Women sometimes balance them on their heads. This boy is rolling it down the road.