As I understand the second round of airdrop is still active and they also have a good referral program. I'm sure it'll be cool.
A good opportunity to get a reward and I will buy tokens for me anyway. Since all green projects are now very popular. And this means that there will be a huge demand.
It also means there are a lot of competitors, even I know some green tokens launched this year. But with Brazilian government support, AMA has more chances than other tokens.