Alternatively, you can start small with faucets
I dont think faucet will help a lot. Let us say that some faucet give you 500 satoshi if u do 10 times faucet u just can get 500*10=5000. May be you can do that if you dont have anything to do but I dont recommend it
It would be a nice starter to newbies out there but it is not recommended for them to use it in a long-term, as it will slowly clog up their wallet and cause problems on tx fees. (More reference here:
http://bitcoin.stackexchange.com/questions/32524/bitcoin-transaction-with-dust-output-stuck)
Signature campaigns will give you a decent amount of
BTC but you must avoid spam at all costs for you to not get banned and thus, disabling your earning opportunity.