I'm just a newbie and I don't have other opportunities to make money irl because of my place of living and age. I tried already bounties and airdrops, but I'm not lucky in it. Thanks for your advices!!!
You use your own skills. If you want to earn money from this forum without investment then you can earn free money from it by connecting yourself with bounty or airdrop. I also got my first chance to work on this forum by doing bounty.
But you don't earn money just by doing bounties or airdrops, there are some reputable managers who pay out most of their bounties. Currently AirDrop is very successful and many people are able to earn money from it, maybe this is one of the opportunity for you to earn money for free. Bounties and airdrops are neglected by many people because they don't get enough results so if you have enough time or money and if you are interested in learning then learn trading and you will get rid of the ghost of making money from cryptocurrency without investing.