They just kind of pick up a skim coat of wax and gradually start to shine.
I'm trying to find the mention I had of rehydrating - with little success. Essentially its a 60% solution of sucrose - added a tiny bit at a time until the surface is no longer dusty. Here we are - I found it. 1 tsp at a time of the 60 Brix solution until moist - dry until just past tacky - but not dusty.
Then the instructions read - 0.02% of powdered wax (mix of carnauba and beeswax) and finish with shellac - which I don't think you want to do tonight because it takes a day or so of air out to get rid of the smell.