The most convincing explanation is that when someone is finding it difficult to understand what is said to them, he/she engages in a form of lip-reading: he/she will observe the lips of the talker and mimic the talker's lip movements.
Lake Tanganyika is an African Great Lake. It is estimated to be the second largest freshwater lake in the world by volume, and the second deepest, in both cases, after only Lake Baikal in Siberia; it is also the world's longest freshwater lake.
Lake Victoria is a freshwater lake, the largest lake in Africa, and is part of the tributary system of the Nile River (White Nile).  Lake Victoria is located in east central â¦ Africa along the equator.It borders the countries of Tanzania, Kenya and Uganda.Its elevation is 1133 m (3,720 ft) and its depth is an average of 83 meters (270 feet), lower than in previous years.Lake Victoria is located in east central â¦ Africa along the equator. It borders the countries of Tanzania, Kenya and Uganda. Its elevation is 1133 m (3,720 ft) and its depth is an average of 83 meters (270 feet), lower than in previous years.