There’s no harm asking your viewers to do you a favor by commenting or subscribing to your YouTube channel especially if you know they’ll benefit a lot from the videos you publish.
People sometimes forget to add these calls to action to their videos. Their viewers are left scratching their heads wondering what they’re supposed to be doing after watching the video! Don’t make them think too hard – rather, tell them what to do.
If you want them to sign up to your mailing list, ask them to click on the link in your video description. Maybe even add a screenshot or screen capture of what your site looks like so they know exactly what they need to do.
Share or embed your YouTube videos on your web and social media