Don't play up the eyes and the mouth
Women who wear heavy eye makeup and dark lipstick can look clownish. If you want to wear red lipstick, keep the rest of your makeup light. If you are playing up the eyes, keep your mouth light with a gloss or light lip color that doesn't stand out.
Use liner on your lips as a base.
Lipstick will last longer if you fill in your lips with the liner first. If you're using light lipstick, try a nude liner. Then slick your lipstick on top.
Never use a dark liner with light lipstick
Defined lips are great, but make sure the liner matches the lipstick or gloss. Dark liner and light lips is tacky.