For me if you are a newbie in crypto and doesn't know about how bounty works (well obviously, it was just instruction set by the bounty manager and you need to follow and do the task) the best option for you to get started is to join airdrops, you just need to sign up some form and you'll be able to get free coins.
airdrops are good, but he will not learn the rules of the bounty in this way.
I think you have to start and just do it. will learn during the campaign.