Kids are naturally social. They start making friends as soon as they are able to interact with other children -- and this becomes more pronounced in the teen years. They are also highly impressionable, especially during the teen and tween years. As friends and other peers become more important to a teen, they will become a powerful influence in her life. If you see signs that someone your daughter cares about is a bad seed, take action to make sure your child doesn't follow suit.
Talk to your daughter. Point out the specific behavior her friend engages in that you find offensive and explain why the behavior is unacceptable. Tell her you are concerned that peer pressure may cause her to take on behaviors that are not in her best interest. Address the negative behavior without attacking the friend. Help her to understand why the individual is a bad influence who she needs to separate herself from.
Build your daughter's confidence. Tell your daughter how great she is and how proud you are of her. Let her know you respect her and trust her judgment. If she knows you hold her in high esteem and have great expectations of her, she will be conscientious about not disappointing you by associating with kids you don't approve of.
Be an involved parent. Attend your child's school and extracurricular activities. Do things with your daughter. Make the time you spend together meaningful and enjoyable. When you have a close relationship with your child, she will be less likely to seek acceptance from negative peers.
Provide adequate supervision. Take a hands-on approach to raising your daughter. Insist on meeting her friends and their parents. Find out where she hangs out and who else hangs out there. The more you know about your daughter's whereabouts and associates, the better you will be able to determine which peers are bad influences who need to be phased out of your child's life.
Cut off contact with dangerous peers. If your underage daughter has friends who drink, smoke, use drugs or engage in other unsavory or illegal activities, forbid your daughter from interacting with them. She will more than likely fight you on this, but don't back down. You will probably need to closely monitor her for a while to ensure she has really cut ties with the bad influence.