There are some behaviors that, while not definitively proof of predatory behavior, could raise concerns. These include excessive physical contact with students that's inappropriate (hugging, touching, etc.), spending excessive amounts of one-on-one time with a specific student alone, especially in private settings, giving preferential treatment to a particular student, or making sexually suggestive comments or jokes.
It's important to remember that many of these behaviors could have innocent explanations, but if you see a pattern of concerning behavior, it's crucial to report it. You should tell a trusted adult, such as a parent, another teacher, school counselor, or administrator. Your safety and well-being are paramount. Reporting your concerns allows those in authority to investigate and take appropriate action.