you are newbie, if you want to earn bitcoin then signature campaign is one way where you can joing any one campaign and earn according their post requirement, but for that first you have to rank up your position because minimum requirement is jr.member, as the position goes up your signature campaign earning will go up.

second is you can sell the goods or give your services against bitcoin and earn trust. after some time when you get some knowledge about market you can start trading bitcoins buying and selling and earn from that.