Welcome to Steemit!
When you begin, you can upvote some posts, resteem posts, and comment on posts. You will be rewarded steem power for your upvotes and your resteems. You can check your steem power by going to Steemd.com and then entering/@yourname in the address bar. You will want to keep it at 80% or higher. This gives you about 10 upvotes to give away each day.
Here is the link to the Minnow Support Project. You can find lots of help there.
Thank you @simgirl!