Grab attention with PowerPoint shortcut keys
When presenting in slide show mode, don’t distract with PowerPoint options and commands, use shortcut keys to quickly emphasize information without having to change display mode or scroll through menus:

 
 
Jump to a slide [number] + Enter Erase on-screen pen annotations E
Change the pointer to a pen Ctrl+P Hide the pointer & button temporarily Ctrl+H
Change the pen to a pointer Ctrl+A Show list of all slide show shortcuts F1