Go to the campground and rest. That restores both Hit Points and Moxie Points, but it *does* use up an adventure.
From what I've seen, resting gives +1-3 HP and +3 MP, so use your Moxie liberally (or at least at the rate that you use your HP).
I haven't even used the chat window yet. I think you get further capabilities at a higher level... or maybe when you go to the Temple of Literacy. I forget.
Also, explore all the locations. Only locations with a (1) next to them take an adventure to explore.
Have fun.