How to add it to a stranger's WeChat smoothly?

Successfully added to a stranger's WeChat operation is as follows

First, open WeChat and click the plus sign in the upper right corner, then select the Add Friend option, enter the other party's micro signal or mobile phone number in the input box, click Search, and then click Add to Address Book to send friends for verification until the other party agrees. You can also click the plus sign and choose to scan the QR code of the other party to add.