According to the experience of querying Baidu, modifying the typo in the circle of friends can be completed by the following steps:

1. Open the circle of friends page, click on the text to be modified, press and hold the text, and select the "Edit" option.

2. Modify the typo in the pop-up window, and then click the "Finish" option in the upper right corner.

3. Return to the circle of friends page to view the modified results. If you need to save the modified content, you can click the "Publish" button in the upper right corner.