Plane upward is called "top hanging" plane forward is called "" standing hanging ". Hanging generally with the thumb, index finger and middle finger. Take the right hand as an example: the handkerchief around the fingers counterclockwise rotation, while the arm around the handkerchief counterclockwise rotation. Each time the handkerchief and the arm rotate, the fingers need to quickly change the position of the handkerchief (the handkerchief should not leave the back of the hand during the change). When the open method can not be done in succession, you have to do one by one, turn one even a change of hands said may not be very clear, the key is still to figure out their own more practice.