Just do both trading and holding. You need to trade most of the bounty tokens/ coins 🪙 to exchange with the top altcoins bitcoin. And hold the potential altcoins to wait for the raise of their price.
It's a matter of options really. If you participated in some bounty and got paid in some altcoins already listed on an exchange, I'll suggest you swap it for altcoins that have been known to be around for sometime and keep swapping until you can swap for BTC or ETH, then you can proceed to hold. There is no point having to hold an altcoin that your not very sure about or its potential isn't even in a 50:50 chance.
When it has to do with some actual trading, if you understand the risk and is experienced, you could give it a go but, holding always comes with far less risk than trading and in the event that your mot quite ready for a lose, you might just have to try holding.