what it will look like in pictures. keep in mind that a sleek, low bun is beautiful, but might make you look like you are missing your hair in a photo. always try to have a bit of volume on the sides or on top, or wear a side swept style or an up-do so that you can see your hair from every angle.
it definitely feels silly, but practicing your smile in front of a mirror will help you to get a feel for the way you will look in your wedding photos. once you find a smile that you like, remember how it feels so that you can duplicate 