Final answer:
To display a list of shortcuts for navigating when presenting a slide show, press F5 in Microsoft PowerPoint.
Step-by-step explanation:
To display a list of shortcuts for navigating when presenting a slide show in Microsoft PowerPoint, you can press F1 to access the Help menu, but it won't specifically display the shortcuts. Pressing Alt will activate the menu bar, not the shortcuts for presenting a slide show. The Spacebar is used to advance to the next slide, and pressing F5 will start a slide show and display the list of shortcuts on the screen.