I just new to this crypto and CIO stuff so can i ask how can i earn token when the project starts to sell token ??
you can easily earn free tokens by participating in airdrops and bounty programs, you could also earn tokens by buying them, some compensate you by giving you bonus tokens for buying their tokens. You could check out this sites for airdrops and/or bounties
www.airdropsalert.com,
https://bountyhive.io,
www.alphabounty0x.io, etc