First thing I always do is blow as much liquid (primer) out of them as I can, because most factory-liquids are far from to my liking. Next I put on a few drops of liquid and let itself work into the mesh for a bit. Then put in cartridge and start
vaping.
That's the way I do it, mind you. There are some people that think the factory-liquid is very important and needs to be kept in as long as possible - I'm obviously not one of them, but perhaps you are... then don't follow my route here

(Plus, while I don't know if they still do the same currently, I do know that for instance Janty always has, or had, oriental liquid in it coming from the factory... so nothing special, just 'one of the liquids'- and not my favourite, ugh...)
Hope this helps
