you can exchange the coins with the voting tickets. click "vote" at the middle of the bottom of the page. then, click buy votes. you can exchange there.
1. check in daily.
Click "home" at the left side of the bottom of the page. then, click the calender pict. you can check in there. in a week, you can get 500 coins. remember, every monday, you will return to day 1.
2. enter your refferal
Click "home" at the left side of the bottom of the page. then click settings at the top right corner. at the third line, you click it. you can write "ENHYPENVT" or "ENGENENHYPENN". after that, you can get 500 coins that can redeem to voting tickets.