How to qualify for airdrops?

Could you kindly elaborate on the qualifications necessary to be eligible for airdrops in the cryptocurrency world? What specific criteria do projects usually consider when selecting participants for such giveaways? Are there any general steps or prerequisites that individuals should follow to increase their chances of receiving an airdrop? Additionally, how does one stay updated on the latest airdrop opportunities and ensure they don't miss out on potential benefits? It would be helpful if you could provide some insights into this topic. Thank you in advance for your assistance.