Yes, you can't really do much but hope the video goes viral and gets a lot of attention. Match your description, keywords and title exactly to the video.
I think youtube have the same working function like big G, the keywords and unique contents play important roles, if you want to rank high at youtube...
Of course there are plenty of things that you can do to rank well in YouTube. Hoping won't get you anywhere. OK, here are some hints: 1. Make a unique video in a niche which work well in YouTube (politic, movie, music, sport, entertainment, funny, or games. Others that these niches, you can only "hope) 2. Get good keywords and title 3. Buy some viewers, you can find these services in DP. This is not "white hat" but when your video gets plenty of "fake" ranks and "fake" viewers, real viewers will come. Your video even might get featured on Google search.