Tokyo is by far one of the most important tourist destinations in all of Japan, given the importance it has as a capital, a center for trade and commerce, its cultural treasures and historical attractions.
The city of Tokyo abounds in several historical and cultural attractions, such as the Imperial Castle, the Meiji Temple, Sensoji Temple, etc. There is also an active food and pop culture scene scattered throughout the region as well.
As with any other culture, drinking tea or other beverages with others, is a common even in Japan. One could say that the tea, ever since its arrival in Japan, has become an integral part of Japanese culture.
There are many varieties of tea consumed in Japan. Of them all, one of the most popular is by far the Matcha, the local word for powdered Green Tea. The tea is popular in tea ceremonies, called as chanoyu, sadō or chadō. The ceremonies are themselves held as a way to meet for both formal and informal occasions. The formal celebrations are referred to as chaji, while the informal ones being the chakai. The events also sometimes have small meals in them, called the kaiseki or sometimes the cha-kaiseki.
Last but not the least, the event itself is well decorated and prepared, often in a tea room, with scrolls, elegant floral decorations, and traditional cutlery and so on.
It is also a suggestion that you check out one of the many wonderful local tea ceremony classes that teaches you more about these ceremonies, while enjoying your stay in Tokyo.