HOW TO USE A CURLING IRON Option 1: Start by holding the curling iron vertically with the clasp facing forward. Then clamp a 2 inch section of hair about 1-2 inches from the ends. Curl the hair out and away from your face, all the way up to the root. Hold for 7-12 seconds depending on your hair texture. Always curl the front pieces away from your face (unless you’re going for a retro Hollywood vibe).