Once you have logged in successfully for the first time, you may want to view or change some of your account settings, such as adding or changing your phone number. You may also want to customise your account and add a profile picture.
To make changes to your account details, hover your mouse cursor over your name in the top right hand corner of any system page. On the small menu that pops up, click on My Details. This will take you to an area of the system that contains your Profile Account details.