End screens tend to work best if the on-screen presenter is still talking and giving information to the viewer. If you just cut to a screen with a color or design and no new information, viewers are likely to click off of the page. YouTube viewers are somewhat conditioned to do that now. If you continue to provide information, it will give viewers a reason to stick around.
Fortunately, attracting clicks and keeping viewers interested also raises the visibility of your videos and thus your channel via the YouTube algorithm. Interesting content that people click, and that leads to a good watch time and session duration, can boost your videos’ visibility throughout YouTube. Playlists, collaborations, series, and end screens also improve your odds.
Your social following can grow from your YouTube videos due to provided calls to action in your annotations like the subscribe feature, making it as simple as possible for YouTube users to receive your future YouTube content. Using a call to action is surprisingly effective, proven to increase engagement as compared to not including them in your videos. Asking your viewers to subscribe to your YouTube channel is the most successful social call to action on YouTube but that doesn’t rule out the benefit of drawing attention to your other social networks like Facebook, Twitter, Google+ and more.
Add channel art. This is an image that is seen at the top of your channel page. YouTube will show examples of how the image will be displayed on the website, a TV, or a mobile device. Try to put the focus of the picture in the middle; when your channel is viewed on a mobile device, the sides of the picture will be cut off. You don't want to be left with half your face!