The hard part for any toki pona enthusiast is managing to talk *in* toki pona more than you talk *about* toki pona. #tokipona
I find it's way easier to talk about concrete things in person.
I find I tend to provide translations in threads as I go. Hashtags also help, as do other context clues like images, etc.
i experienced the same with #esperanto when i was in it. i feel like it's a fairly common trend with most conlangs. it's hard to find things to discuss other than the language because it's interest in the language itself which brings us in contact in the first place.
the thing with #tokipona which i really enjoy is that it's kinda like a game.