A ghost of a twinkle as he turned away.

A ghost can't really turn pale, but Tamsin came close.

The ghosts soon turn the agents against each other.

The ghost turned again, and his face moved, almost as though he were trying to say something.

The ghost turned to look at her, and she shuddered.

Every time he turned, the ghost turned too, and was still behind him.

Then the ghost turned to look at Buffy and Giles.

When the ghost turns into an animal such as a chicken so that it can eat, it may be killed and destroyed.

Pulling himself together, the ghost turned to face her.

But the ghost had turned a shade or two whiter than he had been.