It's very easy to set up, and no personal information is needed!
Once you create a username, you'll be able to participate (ask or answer questions, edit pages, etc.)
Think about what name you select. Upper/lower case is important. We strongly suggest that you do NOT use your email address as your user name as this will be then seen all over the site - and spammers can grab it.
Click on the create an account or log in link at the top of any page.
Pick a username and password and fill out the form. Other fields are optional.