Tagging your videos will help make it show up when viewers search for content. Make sure that your tags apply to your video, but also make sure that you aren’t using the same tags as everyone else in your genre.
Try to narrow down your appeal to a few keywords when coming up with tags. For example, instead of tagging your video as “singing”, narrow it down to the style: “blues singing”, “country singing”, “freestyle rapping”, etc. You can tag videos any way that you think people will search for it. Your tags should thoroughly describe the content of your video. Use a mixture of broad and specific tags. For example, if you are making a short comedy film about ninjas, use the tags “short film”, “ninjas”, “funny”, “martial arts”, “action”, “fighting”, “silly”, etc. You can use tags to create “sets” of videos. Create a unique tag and then apply it to each video that you want to keep together. This will lead to more clicks through to your related videos.