I think there may be the following situations.
1. Prove that you are paying attention to a certain circle
This kind of girl, who is usually from idolize, makes friends circle every day for Amway's idol. Or send a circle of friends every day to prove that you are not a swing.
2. Show off
This kind of girl sends a circle of friends to tell everyone that she is doing well. Generally, it is a beautiful selfie, a newly bought big-name cosmetics, or a high-end gift from others. The content of this kind of girl's circle of friends is always bright and beautiful, and there are few negative emotions.
3. Let off steam or get attention
Contrary to the above, these girls often send some sad sentences and things. Or something that makes her angry and crazy.
4. Record your life
These things happen everyday, that is, ordinary life.