To refer a friend to a sportsbook:
Log in to your sportsbook account.
Look for the "Refer a Friend" section in the account settings or promotions tab.
Enter your friend's contact information.
Send the referral invitation through the sportsbook's referral system.
Your friend can use your referral link to create a sportsbook account after receiving the invitation.
Ensure your friend meets referral program requirements to obtain referral incentives or rewards.