My Fediverse Advice:

* Follow more people. No, even more people than that. Basically, if you find a real person and their posts are good follow 'em
* If you get a good reply to a post boost it. If you make a good reply to a post boost it. Replies are not visible in the feed unless you do this. As long as the post is an OK start to a conversation or interesting boost it.
* Write thoughtful replies. And if you put effort into a reply boost it or probably only the people tagged will see it.