Go to the DigiD website Practice with the app.
To do this, click on this link: Practice with the DigiD app.

On the home page click on How do I install the DigiD? app?'.

To start the exercise, click on the arrow at the bottom right, pointing to the right.

If you are one step too far, click on the arrow to the left.
It is also possible to click anywhere on the screen for the next step.

After a few steps you can choose how you want to activate the app.
Select the option you wish to proceed with.

After verification, you can immediately perform the ID check.
Click here for more information on how to do the ID Check:

Practice adding the ID Check

You can also skip this step.