There are tons of bounty programs going live now or planning to go live. How do you decide what program you want to be a part of? Do you research the company or just love free stuff? How do you get most tokens, Twitter? Telegram? Another source?
Take the risks, that's it. Why?
Because even how well properly detailed the future development is, even how popular it is, even how famous and reputable their advisors is, even how well their marketing is, even how good and stunning their whitepaper is, even how large their community is, even how good the speculation for the project is, we all don't know what will happened until the end.
So what to do now? Take what I mentioned as reference and to minimize the risks of being deceived and hope that the project will not turned shit after ICO which is usual even they reached hardcap and required target. Well then goodluck.