well I am using them as we speak - I take the koi brush and add max 1-2 drips into the open pot and then it sit for bit ... then if you want dark strong colour I use a sludgy mix by dipping koi brush point (dry koi this time) in the edge of the puddle you have created - or if I want pale then I thin it down ... and if you want extra mega twinkle - then you can add a scribble or three with a sakura clear stardust over the top of dry paint.

I then leave them sat about until thery dry before putting lids back - often overnight