Couples may want their package be entirely photojournalistic, which is very popular style.  Also very popular is using a combination of photographic styles in a wedding. As an example: using formal portrait family shots & groups shots before a wedding ceremony, followed by a combination of both photojournalistic and portrait from then on.

Another photographic style consideration. Deciding if you would like a wedding packages be only Color or only in B&W. I can also do an entire wedding in a 'Sepia Tone'. However,  I find couples will often use a combination of the styles above.

Another style consideration is that photographs shot horizontally, giving a different impression to those shot vertically. Most wedding shots will be shot vertically, but for group photos I use a wide-angle lens which are shot horizontally.

Providing proper attire
In terms of attire I feel it’s important for a wedding photographer to suit the surroundings. Depending on the needs of a client I usually wear a suit with a turtleneck shirt, or for a more casual wedding style, a white t-shirt with dress pants or shorts.