you can praticipate AIRDROP and BOUNTY after you became in Jr.Member rank at least. Twitter Bounty is recommand for you. if you have more time you can join signature and telegram bounties and others. After you can collect altercoins free in Airdrop and Bounties you can convert it to Bit Coins.
I would also suggest picking up some sort of method that wont demand any money investment. Bitcoin gives many such options but the best one is signature campaign. It is one of the all-time favorite methods. Trading can be considered as the best one but that would burden the newcomer.
Many was to make money, earn it by some other easy way and invest then in bitcoin or start doing some savings or tiny investments.