The 'Add to favorites' function notifies members when their favorite models start streaming online. This alerts them to join and interact with the models. Notifications are sent via email after the model has been streaming for at least 3 minutes, and emails are only sent once every 12 hours.
Members who no longer wish to receive email notifications can simply remove the model from their favorites list, and notifications will cease.
To add a model as favorite, you need to click the "Add to favorites" button.
Once added to favorites, the icon will change to a full red hearth: