Any tips for starting crews?

[Snorri]

I am pretty new at this and I have been starting crews lately sailing out of Padres. With the crew utility it seems to fill up with some random people pretty quickly but I have noticed that no one seems to speak. If they do they scream in local chat, other times they come aboard my ship and then leave the crew but stay on board.

Are there any tips to managing crews a bit better? Also why do most people never ever talk? Its like they have no chat interface at all when I try to talk to some people.

Thank you