(Undated) -- Bullying is no longer a behavior that happens mostly on the playground or the school bus. Social media is providing online channels for negative interactions between children, with more than half of teens reporting they have witnessed online bullying. Experts like Peggy Caruso, a life coach and author of the book "Revolutionize Your Child's Life," says the best way an adult can help their child is to be aware of the potential sources of bullying. She says those signs include a child who seems withdrawn, lacks the desire to interact with others, or exhibits extreme changes in behavior. Cyberbullying is included in Illinois' anti-bullying laws.