How to identify fake airdrops?

How can I effectively spot fake airdrops? What are the telltale signs of a bogus airdrop? How do I differentiate between legitimate and fraudulent airdrop offers? Is there a checklist or a set of questions I should ask myself to ensure the authenticity of an airdrop? What common mistakes should I avoid while trying to identify genuine airdrops? Can you provide some examples of fake airdrops and how they are typically structured to deceive users? How can I protect myself from falling prey to these fake airdrops?