Indirect Communication
Intonation -- The music of sentences, taking your voice up and down in volume and pitch
Subtext -- The implied meaning in what people say, and how to use intonation to get across your meaning
Symbols -- Such as the OK symbol we make with our hands in the US
Gestures -- Movements we make with our bodies to show meaning
Body Language -- Different in each culture, such as how close to stand to someone, and what it means
Idioms -- Things people customarily say that don't seem to make any sense directly but which have meaning
Expressions -- Changes in our face and head to show meaning, which vary by country