hey, from your messages I get the impression you're still trying to find your way around.

Have tried search for and following #hashtags? If you put a word with a hashtag in front, it becomes a search term for anyone else who follows that hashtag. So if you post about '# tree' (without space between hashtag and word) then anyone who follows 'tree' can find your message.
Similarly, if you search for 'tree' in most clients, you can tell your client to follow that hashtag and posts show from all kinds of people (you don't know) show up if they use 'tree' (with the hashtag).
Now you can obviously follow people's accounts, but if you follow hashtags for keywords that are interesting to you, then you can discover other people's messages too.

Because there is no algorithm that "makes up" what you should like, the hashtags and posts from people you follow are the most effective way to find interesting conversation.