Drinking tea in the English black tea is often served with milk and sometimes sugar. Best tea served with milk and one sugar in large cups, called "mug", often called "tea workers" (tea Builders)
. In General, drinking tea in English is not high culture sensitive, understandable all over the world. But that is just daily routines, as well as other national coffee drinking. But it does not mean that the British do not have a tradition of drinking tea together in formal occasions. For classes that they have common room, tea drinking is an important part of the day.