Well firstly, you'd have to hope one is female and one is male. As for the actual polination, if you don't want to make your female comepletely get covered in seeds later then you'd have to take the male into another grow room before the flowers open up then get some pollen on a que tip or something and put it on the hairs of the female. If the female gets pollinated the white hairs should get pulled back in a little bit (not instantly).