I'll follow the OP's format for my reply.
[HEADING=2]Home Faces:[/HEADING]
Normal: I usually don't smile but my eyes are usually either lost, exploring another realm or appear to be attentive and learning.
Sad: Frowning, perhaps tears if the situation is dire enough.
Happy: A grin and beaming eyes. I rarely (Like Valve actually releasing a game on schedule rare) smile with my teeth. I'm told when I try to smile for the camera, it looks forced.
Angry: Negative Facial expression and body language. I have two phases. Pissed off, in which I will say nothing at all and only look at the target of my stress with glares. The other stage is when I'm furious. My face gets red and my mouth is usually moving quickly as I rant (something I really have been working to get rid of)
[HEADING=2]Work Faces:[/HEADING]
Normal: Positive, concentrated expressions. Eyes always focused on the task at hand.
Sad: I never reveal sad emotions at work. There is neither time or need for it.
Happy: A grin, a laughing moment then back to work (normal face).
Angry: Tight, lips pursed to avoid saying something that I'll regret. Eyes are angry but the body remains normal, lest my body language translate my mood.
Meetings: I don't go to meetings.
[HEADING=2]My true face:[/HEADING]
Much like the OP I have two sides to my personality, or "true face". I try to keep the darker side locked up. If it has to emerge, I do it privately and vent at a mirror or something. My Lighter side is the side I present to the world each day and I try to keep pushing myself to be more positive.
My deeper personality is something I haven't really worked out yet. I guess that is something you find out with time or someone close to you tells you about. I shall continue my self-evaluation later. Right now I need to sleep.
Goodnight.