How are tics classified?
The two categories of the tics of TS and some common examples are:
SIMPLE
Motor – eye blinking, head jerking, shoulder shrugging, facial grimacing, nose twitching
Vocal – throat clearing, barking noises, squealing, grunting, gulping, sniffing, tongue clicking
COMPLEX
Motor – jumping, touching other people and things, twirling about, repetitive movements of the torso or limbs, pulling at clothing and self-injurious actions including hitting or biting oneself
Vocal – uttering words or phrases, coprolalia (the involuntary utterance of inappropriate or obscene words), echoalia (repeating a sound, word or phrase just heard) or palilalia(repeating one’s own words)
The variety and complexity of tics or tic-like symptoms that can be seen in TS is enormous.

ems include oppositional/defiant behaviour, aggressive and uncooperative be

What are the symptoms?
TS is characterised by rapid, repetitive and involuntary muscle movements and vocalisations called “tics”, and often involves behavioural difficulties. The term “involuntary”, used to describe tics, is a source of confusion since it is known that most people with TS do have some control over their symptoms. What is often not recognised is that the control which can be exerted, from seconds to hours at a time, only delays more severe outbursts of symptoms.
Tics are experienced as a build up of tension, are irresistible and eventually must be performed. Typically tics increase as a result of tension or stress and decrease with relaxation or concentration on an absorbing task. TS symptoms have long been misconstrued as a sign of behavioural abnormality or “nervous habits”, which they are not.