Know what's expected of you - Depending on the agreement you’ve set up with the bride and groom, what to shoot will determine the plan they’ve arranged beforehand. Make sure you know what they want before you begin shooting. This may save you lots of footage, energy, space and time, especially when you’re editing! A basic package plan some videographers set up usually includes just the ceremony and the highlights of the reception. However, if the package is extended, this could include additional footage, such as the bride and groom getting ready, a slideshow, after party, etc. It’s up to what they want when deciding what to shoot.
Dress appropriately - Button-up blouses, dress shirts, slacks and comfortable dress suits are preferable. You'll be doing a lot of moving around, kneeling and bending so wear comfortable dress shoes.
Work well with others - Get to know all the vendors who’ll be helping out with the wedding: wedding coordinator, photographer, DJ, musicians, singers, etc. Everyone needs to work together and these people can help you. Making good relationships can also lead to networking and future opportunities. If there’s a wedding photographer, ask him or her if you may use some of their photos for a video slideshow.