try to start trading bitcoin to another crypto currency like eth you can double your amount in 1 week or try to loan some bitcoin and start trading
now you cant find any person loan the btc and this is a bad idea , you can join in signature compaign and social media
this is the best way to earn btc without any invest and when you earn btc start trafing .
You can still loan btc but you can only find few people who is willing to do that for you. Joining signature campaign is a very big help to have investment that you won't be needing to get out money from your pocket but making your account rank up is going to take time so I will advice to try investing little amount of money while waiting for your account to rank up. At least time will not be wasted in making money.