When his toplofty and thin lips closed firmly,two careworn wrinkles were cutting through two sides of his cheek deeply,stretching from his shallow dimples at the corners of the mouth to his chin.
“Nature gave us lips to conceal our teeth, ” ran one popular Victorian maxim, alluding to the fact that before the birth of proper dentistry, mouths were often in a shocking state of hygiene.
Malfoy was curled up on the ground, whimpering and moaning, his nose bloody; George was sporting a swollen lip; Fred was still being forcibly restrained by the three Chasers, and Crabbe was cackling in the background.
To some extent, the intense blinking of eyes along with the occasional touching of lips and eyes can also indicate that they are not being honest with you.