Visit website to register and verify your email to access dashboard page. Scroll down to find "Social Media Airdrop" and click on "Opu airdrop" link. Follow on social media channels to get up to 1000 OPU tokens (worth ~$60).
IMPORTANT: Since they are having some issues while sending verification emails, you probably won' t get any email but they are manually activating new accounts. You can keep an eye on telegram group for latest announcements.