Leave Your Face Alone detects hand-to-face movement in real time and gives you gentle nudges before the impulse becomes a touch. Hand-to-face movement is detected in real time and gives you a gentle nudge before the impulse becomes a touch. It helps with unconscious face touching, nail biting, skin picking, lip touching, and eye rubbing while you work at your computer. Detection runs privately in your browser, so webcam video stays on your device instead of being uploaded.