To make a bowl of tea, you need a bowl twice as bigger than a tea cup, a teaspoon, some good matcha green tea and a whisk.
Matcha may be hard to define 'good'. I say depends on your taste, you will have to search for your favourite one. Would you like bitter taste or sweet one? At a shop, sometimes you can try the taste, but if not, you have to use your sense of visual and smell. How green it is, does it smell soft or sharp?
It's always fun to hop around tea shops and sometimes you find their special seasonal pack or you may want sweet one in winter but bitter in summer. Remember, October is the 'first flush' for matcha.
Here, I created a video to make a delicious foamy tea. The key of whisking is light and fast! Try it out!