Summarize:

Whether you’ve hired someone to model for you or you’re photographing a family member, think ahead about what you’d like your model to wear. Is this a dressy shoot, or a casual one? Keep in mind that people look best in pictures when they’re comfortable in what they’re wearing.  Consider asking your model to be ready to change into several different outfits. If you’re taking graduation photos of your daughter, for example, you may want to have pictures of her wearing her graduation dress, her favorite outfit, and her basketball uniform. Gather props to go with the different looks. Hair and makeup are also important components when it comes to creating a professional effect. Remember makeup doesn’t show up as well in photos as it does in person, so you may want your model to wear a brighter shade of lipstick or a tad more eyeliner than normal.
Decide what type of "look" to give your model.