Others have said it, ENGAGE! That is seriously the best way. Get out there and interact with people and don't focus so much on your own content right now to get a feel for it. Another is to start building your stake, it helps show you have skin in the game.
Once you are ready, start making blog posts of your own. Blog posts, which can include photos or video links. Biggest thing is MAKE SURE IT'S YOUR OWN CONTENT or the HIVEWATCHERS WILL GET YOU!
Don't spam the threads or post feeds with a bunch of nonsense. People look at that as leeching from the rewards pool and frown on it.
Just overall, get out there and be authentic. Engage with the community and provide valuable content to the network. Your rewards will build in time.