In many cultures, tea is often had at social events, such as afternoon tea and the tea party. It may be consumed early in the day to heighten alertness; it contains theophylline and bound caffeine[4] (sometimes called "theine"), although there are also decaffeinated teas. In many cultures such as Arab culture tea is a focal point for social gatherings.
There are tea ceremonies which have arisen in different cultures, Japan's complex, formal and serene one being one of the most well known. Other examples are the Chinese tea ceremony which uses some traditional ways of brewing tea. One form of Chinese tea ceremony is the Gung Fu Cha tea ceremony, which typically uses small Yi Xing clay pots and oolong tea.
From: http://en.wikipedia.org
