The screencaps are from episode #29 "The Tenth Planet" (1966) - the first story to feature the Cybermen. I'm sorry for the quality of these, I didn't edit them at all.
It's really fascinating how different they look from 2006's Cybermen. Or maybe not much different?
As for me - they look much more scary -brr-
First Doctor, Cyberman, Polly
They do move their mouths when they speak, but not much.
This one must be singing.
The hands, look at their hands. Still human.
Polly: "What's with your face, (cyber)man?"
Cyberman: "It's my beauty mask, Polly..."
If I watched it as a child I would have probably had nightmares till the rest of my life.
Oh look - 2006 Cyberman! He's cute, isn't he? And not very scary...