Okay, so you know how when you watch a movie or read a book, you just sit there and watch or read? Well, with interactive narratives, you get to be part of the story and make choices that affect what happens next. It's like a choose-your-own-adventure book, but on the computer or video game!
Let's say you're playing a game where you're a detective trying to solve a mystery. You might get to choose which clues to follow or which places to go search for evidence. The game will then react to your choices and give you different outcomes based on what you chose. So, if you chose to follow a certain clue, that might lead you to a suspect, but if you ignore that clue, you might miss the suspect and get a different outcome.
Interactive narratives can have many different choices and paths, so you can play the game multiple times and have a different experience each time. It's like creating your own story!