You can try the following methods.
1. Provide a safe and warm family environment for children and avoid any form of abuse or neglect.
2. Supervise children's social networks and Internet use, and educate children how to protect their privacy and avoid interacting with strangers.
3. Cultivate children's self-protection ability and awareness, and educate children how to identify and avoid dangers.
4. Pay attention to children's performance in school and social activities, and keep good communication and contact with teachers and friends' parents.
5. Provide children with a healthy diet and exercise to keep their health and immunity.
6. Pay attention to children's mental health, care about children's emotional needs, establish a good emotional relationship with children, and help children solve their troubles and pressures.
7. Provide children with good educational resources and opportunities to help them develop their potential and interests.