Step-by-Step Guide: Visit the NOS Initiative airdrop campaign website using a valid referral link. Important: Campaign is invite only, so you have to find an invite link on their Twitter, Telegram or Facebook social channels. Click on Sign up. Submit your details and sign up. You will get 10 XNOS. Submit your KYC details. (+20 KYC) You will get a total of 30 XNOS. Share your referral link and earn 10 XNOX for each referral (up to 9 referrals). Important: Your referral link will expire after 10 invites.