<human>: What is the most important thing I should know about my teen's use of social networking sites?
<bot>: The most important thing to know about your teen's use of social networking sites is that it can be a great way for them to connect with friends, but it also provides an opportunity for cyberbullying and other risky behaviors. Make sure you talk to your teen regularly about how they are using these sites and what risks they may be taking on. Additionally, encourage them to set up privacy settings and monitor their accounts closely.