First Look – before the ceremony

Hi ladies, 
Is anyone thinking of, doing or done a “first look” with the groom before the ceremony? 
I’ve seen some images of this moment, and read about it and it seems so beautiful, sharing a moment with your FH before you walk down the aisle. 
I’m just wondering how you coordinate it at a venue as well? Without any guest seeing (ceremony & reception at the same venue). 
Can anyone shed any light on this?
Thanks!