Summarize:

If someone you're chatting with starts to talk about sex or sexual topics, you should stop talking to them. This includes them talking about or describing sexual acts. In addition, you should be very suspicious of anyone who asks you to talk about sexual acts or requests you to engage in them offline. Cease communications with anyone who requests a picture of you naked or engaging in a sexual act. Although it might seem normal for someone to ask you questions about yourself, you should be suspicious of people who ask you personal questions. Some questions include: What you look like, including your physical characteristics like the color of your hair and skin, your weight, and height. What your family situation or living situation is like. If anyone asks whether you are alone, live alone, or are frequently on your on, you should be suspicious. Public chat rooms where there are many people chatting are often safer than private chatrooms. If someone asks you to join them in a private chatroom, you should view this with suspicion.
Watch for people who make sexually suggestive comments. Be suspicious of people who ask personal questions. Stay in public chatrooms.