Outdoor guide to clairvoyance and clear vision: The best method to keep blood, sweat or raindrops from your eyes is to wear a brimmed hat. A rolled bandanna tied across the forehead works equally well. Keep your head down. Eventually, droplets will roll into your eyebrows and even though it tickles avoid all temptation or urge to wipe with the backside of your hand. Try a head bop instead. Touching the eyebrow will destroy the natural channeling effect by matting the hair and displacing its natural oily characteristic. If this happens you’ve had it. Seek shelter and a dry soft terry cloth towel.