Quick Tip: Know your weather
Your main light source is the sun. A reflector takes what it is given from the sun and modifies and redirects it. That simple. If you are shooting in broad daylight at noon and use a hard silver reflector to shine that sun right into your subject’s face, your photo will be a hard lit, high contrast mess with squinted, tearing eyes and you will send your subject running. On the other hand, on a cloudy day, the whole sky is a huge soft even light source and getting a piece of that sky down to ground to help bring light into the eyes of your subject is essential. Your hard silver reflector just became your new best friend.