Addmefast for ranking videos?

I'm wondering if I would use addmefast or youlikehits to send out massive tweets or retweets would that help rank the video or do nothing at all?

I have a video that's a top 11 video and it has got views quickly in a day but slowed down. It gained 41 likes, 4 dislikes and 62% watched like half the video...

I have also mentioned the same keywords multiple of times...

yes that would help, but don't do it in big amounts in short period, do it steadily and slowly to avoid getting flagged.

Well, I just have it to send out tweets so youtube wouldn't even know. They would know if I send out likes and views from a weird source...

That helps definetly rankiing inside youtube, but to rank on google you have to create backlinks to authority sources aswell like social bookmarks could be a good idea