How to realize the bubble in WeChat chat?

1) First, we need to set up a chat bubble. We need to download a software called "WeChat Chat Bubble". ...

2) After downloading, we open WeChat, then click "+"at the bottom right of the chat page, and then click "". ...

3) Finally, we can see "WeChat Chat Bubble" in "+",and then click Open to select the gas we want to use. ...