Edward T. Hall was a man who studied how people communicate with each other. He believed that the way people talk to each other can be affected by things like their culture, their environment, and their body language.
Let's pretend that you live in America and speak English. If you went to visit another country where they speak a different language, like China, you might have a hard time communicating with people there. Some things you say might not make sense to them, and vice versa.
Hall believed that this is because different cultures have different ways of communicating. For example, people from some cultures might talk really loud and use lots of hand gestures when they speak. Other cultures might be more quiet and speak more softly.
He also noticed that people's environment can affect how they communicate. For example, people who live in crowded cities might feel uncomfortable getting too close to other people, while people who live in more spacious areas might not mind being closer to someone else.
Finally, Hall believed that body language can be really important in communication. Things like facial expressions and hand gestures can tell us a lot about what someone is thinking or feeling, even if they're not saying it out loud.
So, in summary, Edward T. Hall was a man who studied how people communicate with each other. He noticed that different cultures, environments, and body language can all affect the way people talk to each other.