A decision or decision point.
The idea of making a change or a change in direction.
Someone turning their head and looking at you might represent the idea of that person focusing their attention on you in real life.
Someone turning and looking away might represent the idea of them taking focus off of you, such as leaving, ignoring, abandoning, or disapproving of you.
For more clues, consider the context and the intent behind whatever is turning.
See Also: Corner, Traveling, Nodding, Watching, Rotating, Pivoting, Circles, Going in, Arrow
[1]Changing or developing.
See Also: left or right. Turning in a circle represents the lack of progress.
[2]