How can I get airdrops?

Could you please elaborate on the process of obtaining airdrops? I'm interested in understanding the steps involved, from start to finish. Do I need to register on certain platforms or hold a specific cryptocurrency? Are there any prerequisites or qualifications I should be aware of? Additionally, how do I ensure that the airdrops I receive are legitimate and not scams? Could you also mention any potential risks associated with participating in airdrops? Thank you for your assistance in clarifying this matter.