Who can explain some points that should be paid attention to in writing running script to me in detail? Words must never be empty. What do you mean hollow? Most stippling is exposed on paper.

First of all, hollow should mean that the running script is elegant and smart, not as rigorous as regular script, and it is easy to write loosely without a certain foundation. The structure between running scripts should also be compact and reasonable. Don't drift too much, space. Second, exposing the front into the paper, brush calligraphy is the most commonly used method of exposing the front. Exposing the front side means that when you write, you don't have to use brushwork, and there will be sharp edges, just like the place where you write horizontally is sharp. That is to say, in Fang Bi, there are more Fang Bi in regular script, while Owen mainly shows his face, while Tibetan has a brushwork, and the place where he uses his pen will be more rounded. Which is a round pen. I haven't heard the word "one" below, except that it is usually used at the end of a sentence and is an interjection. I really don't understand. Finally, I suggest watching the video of Tian's calligraphy lecture. These questions can be answered and will be of great help to you. It is recommended to read "one question a day, one word a day" and synchronized copybooks. It's good to watch videos and practice. I'm watching it, too