Ethnography of communication is like learning about how people talk and communicate in different groups, kind of like when you go to school, your teacher talks differently than your friends or your mom talks differently than your dad.
When people study ethnography of communication they look at how people use different languages, symbols, signals and expressions to communicate with each other. They also study the different social groups where people communicate and how it affects the way they talk to each other.
For example, someone might study how people in a workplace or a church community talk, so they can understand how they communicate with each other, what words or phrases they use, and what they mean.
By understanding how people communicate, we can learn more about their culture, values, beliefs, and behaviors. It's like putting on a special pair of glasses that help us see and understand things in a different way.