After uploading a profile picture you can crop it
The content of user fields extends the information about you and can help others to find persons and experts.
If the Profile Completion Assistant is enabled by your administrator, a dialog will appear if you haven't filled all mandatory fields.
You can skip the filling, but the overlay will appear on every login or page reload. If all required fields are filled the dialog will disappear and you can edit your settings as described above (Edit Profile)