Face-framing highlights make you look younger! When highlights are styled to frame the face, highlights attract light, which creates a youthful "glow" around your facial features. It will brighten your complexion and keep you from looking washed out.
It's also a great way to have highlights in a subtle way. I recommend only going a few shades lighter than your own hair. So no more than two shades lighter than your base color. When talking to your hair stylist, explain to them what you want in detail and bring a picture or two. It will help you both understand what your wanting without going over board.