he he facial hair.
A friend of mine when he was a teenager was complaining that he wasn't developing facial hair as fast as his mates and therefore he felt a little immature, especially around girls. I remember the advice we gave him:
"...for two weeks you need to cover your face with salt day and night. Don't let it come off, grind it into your skin. When the two weeks are over fill a basin with cold water and hold that about an inch from your chin. Those stubborn hairs will be so thirsty by then that they'll grow right before your eyes just so they can get to the water..."