Photography is being sensitive to the opportunity for moments to come, and to plan for them.  Not only  being technically ready: the right camera settings, the right angle, proper light - but ready emotionally with patience and discernment for when to press the shutter button.

Rarely are you ever standing so close to someone as viewed by close-up  through a lens. Good actors know this and modulate their performances based on what the framing is. I guide actors and non-actors to look and feel natural when on camera.