Here are the 5 keyboard shortcuts that you must know: These shortcuts will only work when the video player is in focus. To bring the focus try pausing and then resuming the video. A single click will pause and another will resume the video. Double click makes video go full screen. If you are interested in more, here is the complete list of shortcuts for your convenience: Let us know your favorite YouTube keyboard shortcuts in the comments that you think are worth a share.

YouTube Keyboard Shortcuts - 33