Click on your "ME" page icon. Down at the bottom it will say: To create your own About Me page, click here. Once you click that it will ask for your password then it will take you to a page that has a button at the bottom left that says "edit your page".
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .