If you get a token from a bounty, do:
1. Do you directly sell it at a price that suits the person who wants to buy it?
2. Will you sell at a high price?
3. Will you wait (hold) until the token price rises?
It actually depends, if you joined on a bounty and you think that a project is promising, you should actually hold. If not, you can sell it directly. Some projects are worth waiting for because if a project has already launched their platform and has a good development team, it will surely attract a lot of investors.