Dispense one pump onto the back of your hand. Use your middle and ring fingers to rub the product in circular motions for 3 seconds to "activate" the shear-thinning polymers. If you have tried the Haeyoon Brush Free method and ended up looking like a clown or a patchy mess, you likely made one of these three mistakes. Brushes like the "Soft" and "Wet" variants are designed to mimic real-life painting techniques, making rendering more intuitive.