1. You can start from faucet, you will bored son because of small reward
2. you can try blogin, easy to do but need more time to do
3. Sell your skill
4. Trading, you need skill and ofcourse some bucks to do it
Spending time on faucets sites was good in the past when the price of bitcoins was too low as at that time facuets sites used to pay huge amount of coins but now that is history and will never see that scenario again so its better not to waste time there and start earning it from signature campaign once you are eligible to participate in it as you will be highly satisfied with the income that you will generate from it.