How do I start with airdrops?

My driving instructor was telling me about these air drops things for crypto. He says it’s the safest way to do it. He says doing tasks for people like advertising, playing their games, digital art and joining discord meetings, can help you earn a crypto.

I know it’s a type of crypto that hasn’t been released yet. But when it does, it’s likely to go up in value.

He also said, joining twitter groups is the best way to find these.

Does anyone have any advice before I start looking into this? What twitter group do I join? What to be aware of? And is it really worth it?