Originally posted by AstroDave Be as informal as possible! These are the ones that they will all remember, since they show their friends and family in familiar (i.e. non-posed!) situations. Bang away as much as you can, at pre- and post-ceremony activities.
I agree, there will be some great opportunities to get the unposed, candid shots that in the end often mean more than the posed shots, even when they are not technically perfect. Don't worry about getting perfect shots every time, but get lots of shots. Also, I've heard some pros use a slow multiple shot setting, so you have a better chance of getting a shot where no one is blinking, etc. I'd rather have to cull out many shots rather than think "Oh, I wished I'd taken a picture of that!"
Also, consider using the Program Mode, if you feel like too much is going on for you to meter and adjust on the fly.
If possible, check out the places beforehand, get an idea of where you'd like to stand, or have the couple and others stand, for a few posed shots, especially if you think you'll need to add lighting.
Otherwise, be flexible, and relax. Sit in one spot and take in the scene, but don't be afraid to move if necessary. Anticipate the best moments, and wait.
Quote: When everyone is home son #2 and I take pictures and we have a lot of fun just being a family. I'm hoping this situation is the same
I hope so too. Best of luck, and congratulations!