Chances are good you have a wireless network at home and / or at work. If your Android phone has Wi-Fi capability (and most do), you can connect your Android phone to your wireless network. This will offer generally faster download speeds as well as save your phone's data plan.
With "My Queue" you can quickly save videos to watch later.
To add an item to your queue just click the sign next to the video.
Once you've added a video visit "My Queue" to start watching!