As such, you don't really have to pay a cent to 'mint' your NFT, since the buyer will pay the fees when they buy it. Step 2 — Share NFT and submit screenshots a. Follow us on Twitter (@okxweb3). b. Use your NFT as your Twitter profile image and take a screenshot. c. Post a tweet to share your artwork, tag @okxwweb3 and a friend, and add #OKXAINFT d. Take a screenshot of your tweet and your Twitter profile image, and submit it in our form. The submitted form is your proof of participation.