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.
Cahora Bassa is the fourth largest artificial lake in Africa, only preceded by Lake Volta (Ghana), Lake Kariba (located between Zimbabwe and Zambia) and Lake Nasser (Egypt) in ... Read more Lake EdwardDR Congo,Uganda