Documentary, fun, relaxed, friendly, professional
Book everything far in advance - you don't want to be panicking last minute!
When I've received an email inquiry, I'll get back to them with a quote and suggest that we meet up to go over details. I'll always include a free engagement shoot for the couple, to get them comfortable in front of the camera, and am happy to visit the venue with them. On the day, I'm a calm and friendly photographer who won't get in the way but also won't miss those vital shots. You can rely on me.
I think every couple should spend 30 minutes or so after the ceremony with the photographer to get some fresh 'just-married' photographs.
Umbrellas!