I originally had a PM I sent to another student I was mentoring on writer's block, but it was, on the whole, all about asking questions as you make your post. You might be experiencing writer's block at the moment and be unsure of how to forward the plot, but there are still things you can do in the mean time that keep you active and can be used to flesh out the world you're in or the character you're portraying. It at least gets something down until another day when you're feeling more up to posting.
I've deleted the PMs since then, however D:
But I'll get onto you with more detail about it soon. It's essentially filling the gaps that people gloss over most of the time in posts, which can also open up interpetations and perspectives you might have otherwise not come across.