How do you farm airdrops?

Could you kindly explain, in simple terms, the process of farming airdrops? I'm interested in understanding the steps involved, from initial setup to actually receiving the airdropped tokens. Is there a specific way to prepare for them? Do I need to hold a certain amount of a particular cryptocurrency? Are there any risks involved that I should be aware of? Additionally, how do I ensure that I'm eligible to receive the airdrops and avoid any scams? I appreciate your assistance in clarifying this topic.