Ju Jing _ Pen-turning tutorial has a kind of "pen-turning" called kiku. When she got the pen, kiku immediately turned it up. It can be seen that the speed of her pen rotation is still very fast, and the picture is almost blurred. But when the camera zoomed in and saw the way she turned around, netizens bluntly said that you were joking? I see kiku's pen spinning speed is very fast, but she always uses two hands to spin. Many netizens also refer to this pen as maybe everyone can do it. Isn't it common to turn a pen with one hand? How to treat kiku's pen-turning technology?