Create Catchlights

Step #5 – Here’s my tip on adding in the CatchLights- BE THE LIGHT. You act as the light and think about where the light would hit the subject if you were the light. This is important otherwise it will look really manipulated. A light source between the 10 and 2 (like on the face of a clock) on the eye is usually where you see it in professional shoots. Set your size and your exposure. When I do this I set my size a little bit bigger then I want the actual “Light spot” to be and I set my exposure to 50% and the range to Highlight and I click a few times so that it’s just a bit lighter then I continue to decrease the size of my Dodge tool and nudge the exposure up to 75% concentrating the “Light spot”.

Source:
Beyond Megapixels