Click on the user account icon in the bottom-right corner of the app.
You'll your unique referral code at the bottom of the screen.
Click on the ""Share Code"" link to the right of the ""Refer A Friend"" section and share it with your friends using one of the available options.
Please ensure that your friend(s) add this code while installing the app (for the first time).
Please note, you cannot refer a user with an existing Blue Tokai app account, and we're unable to add the referral bonus manually in case your friend missed adding your referral code while installing the app.