I am going to mail a letter to someone that I want to give the option of adding me on the Line app.
To add me they can do a phone number search but what are some other ways to add a Line contact (other than scanning the QR code and doing a phone number search)?
If he has a mutual friend, a friend can also send the contact directly for adding.
If you are physically mailing a letter to someone, you can also just print off the QR code from a screenshot onto paper and include it in the letter. It works.
If email, then just simply email the screenshot of the QR code.