This is Part 1 of 2, and this step is easier to do on a PC.
Click here for Part 2: Using Twitter’s Hexagon PFP
1Navigate to https://opensea.io/
2 Your profile picture will appear near the top right. Hover over this icon to see your options, then select “✏️ Create”. You may be prompted to “sign in” to OpenSea:
3 You should arrive at https://opensea.io/collection/create. On this page, you can give your collection a Logo image and a Name. The other settings are optional. Update these items, then scroll to the bottom and click “Create”
4 When your collection is ready, OpenSea will navigate to the management page. From here, you can click on the ellipsis and choose “+ Add item”
5 On this page, you will give your item an Image and a Name; the other settings are optional. Update these items, then scroll to the bottom and click “Create”
6 OpenSea will prompt you with “Almost done”. Check the box to confirm “I’m not a robot” and complete the CAPTCHA. When complete, you will get a confirmation. Close the modal to see your item.
Checkpoint: Your NFT has been created, but OpenSea has not told the blockchain about it. Now we will transfer the token to create that notification.
7 Click on the paper airplane icon to show the “Transfer” dialog, then enter a different account/wallet, then Transfer. If that account is the one you want to connect to Twitter, you’re done. 🎉 If not, transfer it back. ↩️