STEAL MY FACE!

With a bit of imagination and guesswork, you should be able to create whatever facial expression you need. If you can’t; well, here. Steal my face!
If you want to look ‘evil’, tilt your face downwards while focusing your eyes upwards, and either grin or scowl.
To look truly scared, open your eyes as wide as you can, keep your mouth open, curl your upper torso backwards (by rotating your shoulders backwards and down), and tremble.
To look enraged, flare your nostrils, furrow your brow, grit your teeth, and either keep your eyes slitted or wide open.
To look sad, keep your eyes half-open or slitted, furrow your brow, tilt your head downwards and roll your shoulders forward and down. (By tightly shutting your eyes, then opening and closing them again in rapid succession, your eyes can be brought to the look of tears, if not actual tears.)