To open the YouTube app
Tap the Home Button 
> the Apps icon 
> the Google folder 
> YouTube 
.
Search for and tap a video to watch it.
Tap the Menu icon
for the YouTube Options menu (Settings, Privacy
policy, Help & feedback, and Sign in/out).
Tap the Home Button > the Apps icon > the Google folder > YouTube .
Search for and tap a video to watch it.
Tap the Menu icon for the YouTube Options menu (Settings, Privacy
policy, Help & feedback, and Sign in/out).