Can someone explain the referral system in Luck Party Social Casino?

Hey y’all. I recently discovered Luck Party out of the blue. I saw a review on YouTube, and then it kept showing up in my recommendations. So, I’ve been thinking about giving it a shot since last week. I finally registered, received the welcome bonuses, and started playing. Then I started looking for other ways to earn bonuses and found the Refer a Friend system. I’ve only been playing for a little while, so I’m still learning how it all works. So, how do I invite a friend the right way, and what do I get for doing it?