During a recent outdoor practice shoot I ran into trouble keeping the reflection of my bounce card out of his glasses. I was using the silver side and had it positioned below and to the front as the sunlight was behind. I couldn't a spot where it was clear. How have you handled reflections in glasses on your shoots?
I've only done this indoors but I usually get the subject to angle their head down to avoid reflections from my main light.... so I guess it may have to be more of an upward movement to remove reflections from a full reflector that's below them.