The specific steps for sending 3 pictures side by side to WeChat Moments are as follows:

1. First, we turn on the phone, open the WeChat software on the phone, enter the WeChat main interface, and click below My options.

2. Then we will enter the My interface and click the Collection option on the interface.

3. We click the plus sign above on the collection interface.

4. Then in the note details interface, click the picture icon in the lower left corner.

5. Then we check the pictures you want to publish in the circle of friends and click Finish.

6. After processing, the puzzle photo will be saved in the collection note details. Click the vertical dot in the upper right corner, select Save as Picture, and save it in the mobile phone album.

7. In this way, a composite picture is generated in the album, and when sent to the circle of friends, it will be a picture of 3 pictures side by side.