no one is going to give you free bitcoin.if you think earn more or without hard work? then dice,gambling is best way to make your bitcoin double. but this might make you pauper because it have 50% Chance to win and 50% chance to loss.so that i think signature campaign is best way.and next lets see what people say in it.
yeah there is no free bitcoin in this world even though from faucet, you just keep typing chaptha to claim the free bitcoin,but if there was a free bitcoin maybe from a giveaway but sometimes there are some conditions to claim that giveaway, honestlly if you have a skill i think sell your service is a good way to earn bitcoin also