Take a cup of water and heat it till it is about to boil.
Take a strainer and measure and put 1 teaspoon of green tea leaves in it.
Pour hot water into the cup through the strainer. Pour till the bottom part of the strainer is immersed in hot water. If you are using a teabag, then dip tea bag directly into the cup of water.
Take the strainer away (or the teabag) in 2-3 minutes and take a sip to check if this is how strong you would like it to be. If you are making this for someone else, then use a spoon to check the flavor!
Steep again for 30 seconds if you feel the tea needs to be stronger.Follow these steps a few times. Very soon you will know exactly how to make the kind of green tea that you like.