I've found that the best way to introduce people to mastodon is to immediately suggest them a server.
Even if it's an invite only server, you can message the admins that you have someone in mind for ther server and would like an invite link to send to them.
It helps a lot. This is how you'll get friends and family on here.
@keverets Definitely!
And at the same time, is that such a bad thing? Like. Maybe growing by people slowly trickling in isn't a horrible terrible thing, maybe it's just absolutely fantastic? :D