How do I Share my referral code with friends on Coinbase?

I'm looking for ways to earn additional incentives on Coinbase by sharing my referral code with my friends. Could you please guide me through the process? I'm wondering if there's a specific section in the app or website where I can find my unique referral code. Once I have it, how do I effectively share it with my friends? Also, are there any limitations to who I can refer, or are there any conditions for the referral bonus to be valid? Any advice on maximizing the chances of my friends signing up using my code would be greatly appreciated.