For all the wrong reasons - one where the Bride refused to be in a lot of the pictures! Talk about stressful!!
My ability to get on with anyone at any level and to make people feel relaxed in front of the camera.
Plan to enjoy yourselves! The best weddings I have been to have often been the simplest and have been great fun.
Personal, approachable, and always keen to meet their needs.
A good set of umbrellas and a great sense of humour - there are always the opportunities for good photos, whatever the weather!