How to watch reiki videos?

I came across some good reiki videos on youtube, and I’ve just been watching them in front of me the whole time. Am I supposed to do that and nothing else? Is the video supposed to be in front of me at all times? Do I need to be able to see it? Or does it have to be facing me somehow?

For me personally I feel it the best/most when I have the video in front of me. But I am wondering about efficiency overall.