How to get zk airdrop?

Excuse me, could you please clarify for me how exactly one goes about acquiring a ZK airdrop? I've heard it's a great way to obtain the cryptocurrency for free, but I'm not quite sure what steps I need to take. Do I need to hold a specific amount of another cryptocurrency? Do I need to be an active participant in the zk community? Or is there some other requirement I'm missing? I'd really appreciate any guidance you can provide on this matter. Thank you in advance for your help.