This great feature is buried under the Enhance > Adjust Facial Features menu. Because these are modest adjustments and not wholesale compositional changes, the edits tend to look natural. The new Face Tilt feature lets you coordinate portraits so people are more or less facing each other or the same way, while the Adjust Facial features command gives you additional options to adjust the angle of the eyes and other facial features.
The subtle Face Tilt feature can align faces toward each other and the viewer to vastly improve portraits.