To hide the dynamic, you can open my I Post Bar first, and you can see your post bar avatar in the upper right corner. You can see that there is a "personal information" on the avatar, and there is also an option of "setting". Click it to see the privacy. Just set it up.

How to see his space: Click on his ID name and enter his I-post bar. There are several icons under his head, indicating that there is room if there is a house icon, and it will not be opened if there is no one. In addition, you can also search his space on the homepage of Baidu Space.