He means read everyone's post carefully so that if someone says that their horse fell over a cliff and died, you don't think that the character himself fell over the cliff and died.
I was actually going to post a post this evening, but in it, I had Athwen follow Vaenosa and then when I got on to post it, Farael had already posted his inwhich his character runs into her. It amused me greatly, but it also put my post out of comission, so you all are going to have to wait until tomorrow.
-- Folwren