How to brew Ti Kuan Yin tea (Tie Guan Yin) in casual settings?

People usually ask me how much to put in if brew Tie Guan Yin in a tea cup, either at office or at home. It really depends on how strong you want the tea to taste like. But a good rule of thumb is to cover the bottom of a tea cup in half. After pouring water in, you will see tea leaves first surface up but will sink down when they gradually open up. You are doing the reversal of what tea makers did during "Roll / Fire / Dry" process. You can smell the aroma at this time.