If, when creating a Goal, you saved the Goal as a "draft", you can publish it at anytime by following the steps below:
Step 1: Click into the Goal you want to publish from your "You" page
You'll notice that is says "Draft" on the righthand side.
Step 2: Click "Ready to Publish?"
Step 3: Click "Publish"
As shown in the message above, publishing a Public goal will make it visible to everyone in your organization, and will allow you to begin tracking progress.