Keyword density on youtube?

I had posted this already, but it was in the wrong section..

I'm just wondering, how does keyword density work on Youtube videos when trying to rank on Google?

It just seems complicated to me because there are all sorts of other texts all over the page (like suggested videos and their titles, etc.). Is it the same as a normal webpage? Or is there any trick with keyword density on Youtube videos (while ranking in Google?).

The best you can do is to manipulate the parts of the page that are under your control, like the title, description and comments. Since there's a lot of other content on the page that is out of your control, like you mentioned, you should use the keyword more than you would on your own page which is only about that particular keyword. It gets diluted from the rest of the page so you need to hit it hard but in a way that doesn't look over done.

Ok I'll try that. Ah... I hate dealing with keyword density lol

Actually.. do you guys think I should be keyword stuffing a little bit just to try and even out the keyword density?

Like at the bottom of my description I'll put something like this.

Tags:
keyword variation 1
keyword variation 2
etc.