To view the self-guided tour in full screen, click the fullscreen button at the top right corner. Then, click on the self-guided tour itself for step-by-step instructions.
Please note: If visibility settings for the reviewee are set to 'Immediately, once complete' - the reviewee will be able to automatically see the results from their manager. The option for the manager to 'Share' the review would not be visible as it would already be available once the assessment was completed.