To refer a friend to Sessions and earn Bonus Love from them, all you have to do is tell them to mention your name while they're creating their Artist account. When getting to the "Artist Referral" part of the form they need to fill when joining Sessions, advise them to write your Artist Username as being the one that referred them to the platform. Please note that this step is absolutely crucial for the referral link to be created correctly. You will not be able to correct or rectify this later.
Please keep in mind that the new Artist needs to successfully onboard the platform and reach Artist Level 9 for you to qualify for receiving the Bonus Love for them. As they reach Artist Level 9 for the first time, you'll receive 12,122 Bonus Love added to your account no later than 7 days after the fact.