Read the passage and then tick your choices. Body Language Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in form of oral speech. When there is a language barrier, communication is accomplished through sign language. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party in only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille, signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people, While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. 1. The type of the passage is _______.