I was just asked this by someone we are mentoring @steemitfamily and I said aside from creating good quality post you need to engage other people.
Look for good people to follow that has the same niche or passions as you do. Engage them with meaningful conversation that will make them curious on what you write.
Worse case you just get ignored. Best case scenario you get an upvote and a follow.
I average about 17-25 unique comments in other people's post a day. Not to mention replying on the comments that I receive and I have started upvoting good comments.

This is a good way for you to keep engagement.

I have added this to our Tips section.