Important aspects of metadata include: descriptions, tags and closed captions. A lot, if not all, of the principles around SEO apply to the ‘suggested videos’ algorithm. Start with a title that will get people to click through, show relevance to the content and push keyword ranking. Then move on through the toolset to include annotations, playlists, links and comments. The more interesting and up to date your channel information is the more likely you are to keep people there and boost your end results.