The following are some of the easiest way to figure out a scam airdrop
1. They will ask you to donate
2. They will ask for your private key
Feel free to add yours in case there are many more.
Best regards and happy airdrop chase.
1. FAKE SOCIAL MEDIA ACCOUNT
2. ENGLISH OR GRAMMATICAL ERRORS
3. THEY ALWAYS BEG FOR DONATIONS
4. THEY SHARE REFERRER LINKS
5. THEY DON'T HAVE WHITE-PAPER OR WEBSITE