Fear

The characteristic facial movements associated with fear are superficially similar to those of surprise, but there are some subtle differences:

1. The eyebrows are raised with the inner corners of the brows drawn together, straightening the brows and producing short horizontal wrinkles on the forehead.

2. The eyes are opened wide, with the upper eyelid raised and the lower eyelid tense and slightly raised.

3. The mouth is opened but tense, with the corners of the lips drawn back slightly (often asymmetrically).