To add a QQ custom label: 1. Find the personalized label in the data card, click the label wall to enter the label editing page, and then click Add Label to enter the label adding interface. 2. Click the custom label to enter the custom label editing page. After editing the custom label, click Add to return to the label adding page, and then click Finish to successfully add the custom label. Steps to delete QQ custom tags: 1. Click the personal user's avatar in the upper left corner of the message interface, and then click the user's nickname or avatar. 2. Then, click the corresponding personality tab on the interface, and then click Edit. 3. Then select the label to delete, click the "X" icon on the upper right, and then select Delete.