Grooming is a tactic used by abusers to desensitize victims to abusive behaviors over time. It starts with only positive behaviors to gain trust, then gradually introduces abusive elements in small amounts that do not seem alarming. This process continues until inappropriate behaviors feel normal to the victim. The document then provides tips for parents to help protect children from online grooming, such as teaching them that not everyone is honest online, monitoring their social media use, and ensuring open communication.