Third person Game: How do you animate while moving?

I have a bipedal character that I’ve animated and brought into unity which I control from script using mechanim.

I have no problem with movement, and running, but am curious, whats the proper way to do something like aiming a weapon while walking? What about while running?

I can aim, I can walk, I can run, how do I aim and walk/run?

Thanks!

Try following the mecanim tutorial here: Unity 4.0 - Mecanim Animation Tutorial - YouTube

You really only sound like you need the Using IK section of the video so I have copied the url to start there. Basically what you are going to do is turn off the motion of other body parts and then control those body parts with another animation.