Since you're new here, I'm going to educate you by correcting Dulhara's statement here. Airdrops are not the easiest way to earn tokens. Airdrops refer to a token distribution that ONLY OCCURS from a cryptocurrency fork attempt, which means you must own some cryptocurrency and then that crypto must become the target of a hard fork attempt. For example, look up how Bitcoin Cash was created....that's an airdrop.

What Dulhara is really referring to is a bounty campaign. Where you do some advertising or provide your contact information in return for a being given some portion of a soon to be released token.

The reality is that if these cryptocurrencies had real utility in the world their developers wouldn't need to give them away for free.

These free tokens often have no market to be traded in so if you own them you can't exchange them for any currency with real value or liquidity. You're stuck with something that usually becomes worth nothing.