Folks! I was confused that what is Curation on Steem? how do I get Curation reward? Here what I found about Curation
Curation is simply the act of up-voting using the upvote button.
It does not cost you any of your own Steem (money) to vote (curate) and in fact you can earn Steem by curating.
Currently you can cast 40 curation votes /24 hrs. After hard fork 19, you get 10/24 hrs. You can vote more but your influence Power goes down and you give less and earn less on votes.
When voting, the dollar value displayed is not updated in your browser until something causes the page to refresh (voting will cause the page to refresh). So if you want to see how much your vote really ads, you will need to refresh your page, see how many have voted, quickly vote, then make sure yours was the only additional vote. Then you can subtract the new dollar value from what the old value was.
NOTE also that the dollar value shown is only 2 decimal places and will not show additions of less than 2 decimal places even though the amount is in actual fact added to the total.