1, if you are in a circle of friends, you send photos or videos, music and other content, but the essay is just a full stop. In fact, there is no specific meaning, which varies from person to person. But generally speaking, you just can't think of any good composition, so you have to send a full stop, because friends must send a composition, and you can't send it without a composition. So this period is meaningless, just look at the shared pictures or videos.

2. If it is a WeChat chat conversation and the other party sends a full stop, then you should contact the context of your conversation to understand. It may be "I know, I understand" or "Stop talking and end the chat". Of course, it is also possible that it is just the other hand's mistake. If you really don't understand, you can ask each other directly.