How do you you get a YouTube video to get full screen on your iPod?

To get a YouTube video to full screen on your iPod, first, open the YouTube app or the website in Safari. Start playing the video you want to watch, then tap the video once to reveal the playback controls. Look for the full-screen icon (usually represented by two diagonal arrows) in the bottom right corner, and tap it to expand the video to full screen. To exit full screen, tap the screen again and then tap the full-screen icon once more.