Assuming a two light setup, what would the best use of the two lights?
Edit: after getting no response to what I guess was an over-ambitious question, I've researched this and have come up with a number of solutions. The basics are this: ideally you need a key light, which is the main (and brightest light) on your subject. You will usually want some degree of fill light to fill the shadows. This can be done using your second light, or by using a reflector. If you use a reflector, you can reserve the 2nd light to serve as a hair light or a background light, or both, in order to provide separation of the subject and background.