Need help with the engine.

[DjSimplicity]

I am currently in the making of a game, and i need to put in a few things in the engine to make it the way i want it to be.
1. To be able to see the body. (Look down, see legs and feet. Look right/left see arm and hand.)
2. When looking into a mirror, you see yourself.
3. When you pick something up. (you see your arm reach out and picks it up with the hand.)

I would be very grateful for any advice or code, and anyone who helps get's their name in the game.