You can make money by posting, commenting on other peoples posts, voting and resteeming someone else's post.
You can also see anyone's wallet....this is where it tells you how much they have made. Just click on their name.
Also when you look at a post it will show you how much they have made on that post.
I have about 50 posts but I have only made $6.87.
Not much for all the work I've done but as your following grows and the number of post, comments and resteeming you do it should go up.
It's kind of a weighted scale depending if other people find your posts interesting, informative etc.
Being new here myself I still have a lot to learn.
If you have a question you can always ask it and put the "help" tag in.
Hope this helps a little bit.