Hover your mouse overtop of your User Name in the top menu bar. This is located on the far right of the screen.
Click My Profile from the drop down menu that will appear.
Click Edit from the top-middle of the user screen.
Edit the fields you'd like to edit. ** Your ability to edit fields is dependent upon your system permissions. If you feel you should have the ability to edit something, please contact you site administrator. **
Click Submit Changes to apply your edits to your account.