Before using the lip liner, pinch the tip of the pen with your thumb and forefinger for a few seconds to heat. The temperature of your fingers will soften the lip liner a little and make it smoother and smoother to use. Is lip liner only for lip lining? For a long time, the answer was "yes". In fact, lip liner is not only used to outline the lip line, but also to apply the entire lip. Outline the upper lip with lip liner and then apply lipstick to the entire lip to get a non-shine and non-flaking lip look. Apply to lips from top to bottom.