Credit: Getty ImagesKey PointsWedding guest hairstyles should complement one’s look while never competing with the bride’s.Ahead, pro hairstylists share their favorite looks along with tips and tricks to DIY at home.After hitting send on your RSVP, the countdown is on to celebrate the happy couple on their big day. Next on the agenda? Zeroing in on the best wedding guest hairstyles. Of course, it’s important to pick the right dress and choose a …