The mobile phone input method can generally print the red apple icon, or enter the expression store on WeChat -I-Expression to download the expression package with the red apple icon;

In addition, you can add custom WeChat emoticons.

Open WeChat, click on friends and enter the chat interface;

Click the smiling face in the chat input box, then click the red heart, and then click the+sign to enter my favorite expression;

At this point, click the+sign in the "My Favorite Expressions" list, and you can add the red apple picture downloaded from the mobile phone online as an expression and send it to your friends, and then copy the icon into the comments.