"There are lots of ways that we observe how people express themselves. When we talk with someone on the telephone we not only listen to what the person is saying, we listen to how they are saying it: their tone, speed, inflection, emphasis, hesitations, loudness, and many other things. Studies have shown that over 80% of verbal communication is how something is said, and so we have learned to listen to these signals. When we are talking with someone in person, again we not only listen to what they are saying, but how they are saying it. Additionally, we look at their body language. We notice how close they stand, if their arms are crossed, if their eyes are wandering, and so on.
When we look at handwriting, there is the message conveyed by what was written, but there is also a message in how the writing was done: what is the size, slant, pressure, speed, etc. In school, we are all taught to write the same way. How we choose to vary our writing is a result of our individual and unique personalities.
Different writing characteristics are called handwriting indicators or writing traits. Examples include writing size, slant, and pressure. No single indicator totally defines a person. The interpretations of all indicators must be considered together. However, a strong personality trait will show up again and again in a person's handwriting. A personality quiz asks you questions about yourself to determine who you are, but for the handwriting analyst, there are not questions that need to be asked - you just look at the writing!"