Lexical readingLexical reading involves acquiring words or phrases without attention to the characters or groups of characters that compose them or by using Whole language learning and teaching methodology.

In B. F. Skinner's Verbal Behaviour (1957), he suggested that the successful use of a sign, such as a word or lexical unit, given a certain stimulus, reinforces its momentary or contextual probability.

It's called the lexical hypotheses, it came out in the 1930s and so, you should really when you're talking to somebody and trying to size him up not only, sort of watch to their body posture and all of this but listen to the words they choose to use because it actually comes out of their biology, it says a lot about them.