That's a slow process of earning upvotes through the content you produce. But don't worry, the increase is on an exponential or logarithmic curve, so a few good posts should raise it quickly.

I have earned my reputation mostly through a long history of game and hobby posts like this one. Find your niche and post daily until you build an audience that will support your work.

What do you bring to Steemit? Are you a photographer, artist, poet, humorist, gardener, or otherwise able to create unique content with your personal flavor? Take your time to find your voice. It took me a couple months to feel like I was making progress.