Step 1 IR Face Paint
Cover your mug in IR face paint. It's invisible to the naked eye, but not cameras.
Step 2 Show up in Tux
It helps if your wedding party friends are notoriously uptight.
Step 3 Smile
Play cool. To the photographer your face is going to turn out like a giant white glowing globe. The photog will most likely try and play cool, too.
Step 4 Wait for the Bridezilla Freak-Out
This has a bit of a delayed satisfaction, but it's worth it.