Week 4 on Coursera : Miracles of human language (Introduction of human language)

From what i learned on Coursera is about studying semantics and pragmatics. i learned about the sign language that can be learned from childhood, it's mostly same as semiotics who can read the sign language, mostly like the sign : "STOP", "Crosswalk line", "Traffic Light", and many more.

I also learned pragmatics by having conversation with friends and realtives, and practice its speech and my pronunciation skills as well. They refer to the quality, quantity, relevance and manner of conversation and are assumed to be almost universally valid.