You can roll some dice but it doesn’t need to be a skill check (or whatever the naming is in your system of choice). When I don’t know what should happen, I may roll a die. If it’s high then it should be something good and if low, maybe it will give me inspiration to think about some new lurking danger. But I may discard the result and go with the gut feeling. Whatever, it was an “oracle roll” as I like to call it. Not tied to anyone’s statistics.

I like to use a deck of cards as well. In Savage Worlds, it is used to determine a random encounter. Clubs indicate an enemy, hearts a friebd, diamonds some good omen and spades obstacles. I like to draw a card so it inspires me on what should happen next (of course as long as it makes sense with the world)