Tics are repetitive, unexpected, nonrhythmic, involuntary movements (motor tics) stereotyped and utterances (phonic tics) that affect separate muscle groups...

Facial tics are repetitive, brief, irregular spasms of the face's muscles They are extremely different, but the most usual ones are eye blinking, facial grimacing, mouth twitches, nose wrinkling, squinting as well as throat clearing and grunting...