There are many ways to earn token and coin free, the first one is you can earn BTC in faucet web like freebitco.in you can claim it every hours. the second way is joining in air drop or bounty campaign. what is that? air drop usually only join or subscribe the project in social media, usually you only register one project once after ICO finished you get paid. Bounty campaign is more complex, there are many campaign of social media,youtube,article or translations. After you support this project you will get token too.