Refer a Friend to Gemini
Once your friend buys or sells $100 or more (or 100 USD equivalent of your domestic currency) within 30 days of creating their account, both accounts will be credited $10 (or 10 USD equivalent of your domestic currency) worth of bitcoin.

How to refer a friend
Gemini Mobile App
On the Gemini Mobile App, click “Invite a Friend” on the My Account page and tap “Send” to share your referral link.
Gemini Exchange
On the Gemini Exchange, click “Copy” on the Market page to share your referral link.
Each referred friend must be new to Gemini and successfully complete account sign-up using the referral link. After the new user trades $100 or more (or 100 USD equivalent of your domestic currency) within 30 days of commencing account sign-up, both accounts will be credited within two business days.