When he sees you of the first time and can't stop smiling :)
I always recommend doing a first look for several reasons...
1.) It gives you more time together on the wedding day, because you don't have to wait until the ceremony to see each other.
2.) It doesn't take away from the "aisle" moment, but gives you a more private moment to share together (Greg and I both still cried when I walked down the aisle!).
3.) It helps you spend more time with your guests, because you don't have to take all the pictures after the ceremony! It also allows your family and friends more time to with guests, or at the bar 😉
Let me know if you did (or want to do!) a first look!