This is part of the money I earned after almost two months, and what you see in the picture above is a few coin in a list of dozens of other coin I earned while attending bounty and airdrop campaign.
And this is exactly how you can earn money on the crypto currency without having to spend money to buy coin, instead, you will have to do specific tasks (like, share, comment, ...) to contribute to the marketing of the coin. In return, you will receive the "reward" is the coins of that project.
Once you get them, bring them up to the trading exchange and sell them off, very simple, right?
Comment if you are interested in making money like that!
If you want to know more about Bounty and Airdrop, [visit here] (https://bitcointalk.org/index.php?topic=2154211.0)