To refer friends to join the Omni Select Guest program, one would typically start by sharing information about the benefits of the program. While the specific referral process can vary, it is common for loyalty programs to encourage referrals through personal invitations or promotions. Interested individuals should visit the official Omni Hotels and Resorts website where they can find detailed information on how to refer friends. In some cases, there may be dedicated options within the loyalty program account that facilitates this process. Additionally, some programs provide incentives for both the referrer and the new member, so it is worth exploring any current promotions or offers available. The web page should have the most accurate and up-to-date procedures regarding referrals and any associated rewards.