Whether the video makes you happy, sad, angry, surprised or anything else that you may feel, these are emotions. We are humans, we're attached to emotion. When your video triggers people's emotion, they will start to share it. And when they share, they want others to feel it too. Ok let's ask this question; when you share something online, you do it because it moved you some way or rather, emotionally; or you want others to share the same feeling as you do? So, hit the soft spot, alternatively, hit the right spot! Now, look back at the top 5 most viral video, it's either happy or a funny story. For a start, stick to that for your next viral-to-be video.