i found the definition of LC

Sexual interest and body language
People commonly display sexual interest in other people via body language, although the precise form and degree vary by culture, era, and sex. Some of the cues to signal interest include exaggerated gestures and movement, echoing and mirroring, room encompassing glances, leg crossing, the pointing knee, hair tossing or touching, head tilt, rotation of the pelvis, showing wrists, adjusting clothes, laughing and smiling, eye contact, touching, playfulness, and proximity. Humans also demonstrate physiological cues when sexually aroused such as pupil dilation, 'swelling' lips, etc. For example, the reason why some women use lipstick may be to look more aroused.