YouTube videos can also be embedded in your own website. These YouTube videos by default do not play and one should explicitly click the play button for the videos to stream. However you can change the embedded video settings so that the video starts streaming once your web page loads. This can be very helpful as it starts streaming immediately with out wasting time for the user to click on the play button. Go to the YouTube video that you want to auto play on the YouTube website. Copy the embedded video code from that page and paste in into a notepad. This is the script which tells your website to play this video. To enable auto play type '&autoplay=1' at the end of the video link. Now when you embed this video script in your web page, the video plays automatically once the web page loads. This video shows how to auto play an embedded YouTube video.