You could change your own face. You could changes other peoples faces. You could [i]steal[/i] other peoples faces. You could give things faces and then those things could talk to you about the stuff they'd seen. You could make faces grow out of things and bite people. 

You could also go in another direction with this. You could turn yourself into a compass pointing at the nearest sign of trouble by "facing your problems" or make someone "face their fears."