Non-verbal communication uses several components to intentionally or unintentionally pass messages to others. Some of these components are static, i.e. they do not change during the course of an encounter. Static non-verbal communication components include such things as hair color, body shape and cosmetic makeup.
There are many stuttering problems for people who stutter. People with an established stutter are aware of the negative effect of repetitions, prolongations, hesitations and blocks on their speech. Their stutter (stammer) may be accompanied by facial tics and uncontrolled body movements. Stuttering can lead to the avoidance of certain activities and to social isolation.