Voyeur

Okay kiddo, so there are some people who like to watch other people without those other people knowing. This is called being a voyeur. It's like when you peek through a keyhole to see what your parents are doing in their room when they think no one is watching.

But this is not a nice thing to do because everyone deserves their privacy. It's not okay to watch people without their permission because it can make them feel uncomfortable or violated. We should always respect other people's privacy and boundaries.