To make it add 2 ounces of Shochu to a long drink glass about 2/3 filled with crushed ice, top with fresh-made (but cool) Jasmine green tea. If you happen to have a jasmine vine nearby that's in bloom you can garnish the cocktail with a jasmine flower as I did here.
You can find Shochu in Japanese markets or larger well stocked liquor stores. It's typically lower in alcohol than most other liquors so is a good choice when you want to have an afternoon drink with a little less kick during the warmer months.
Kampai!