On the izneo website only:
Click on your profile in the top right-hand corner of the screen.
Select “My account” from the drop-down menu.
Click on the “Reader profile” tab.
You can then click on the “Activate my reader profile” button, directly underneath “See my reader profile.”
Your profile is now public.
You can make your profile private again by following the same steps and clicking on “Deactivate my reader profile.”