Click on that button, then enter your preferred email address, username and password in these fields:
Then it will tell you to check the email account that you just submitted:
Click on the Activate Account button on the email they sent you and that will bring you back to Gravatar. Sign in with the UN and PW you just submitted and then the rest is pretty self-explanatory. Click on the link to add an pic to your profile and that pic will appear on our forum or any forum where you submit a comment. However, if you’re logged into a forum with an email address other than one that Gravatar has on file, your pic will not appear.