I've asked the question about navigating using moon on The Great Outdoors: https://outdoors.stackexchange.com/questions/4576/learning-to-find-north-using-moon-phases. It seems it would be a bit hard getting correct answers there. Would similar questions be on-topic on astronomy?
Those are about practical uses of astronomy, but it's astronomy anyway.
Similar, would questions about the celestial navigation methods used in past be on topic?