Friend has repetitive lip puckering facial expression, looks like an expression of anger or disgust. Also holds hands up to face as if smelling them (OCD?) What are the possible causes of the lip pursing? Tics/Tourettes? What else could it possibly be. Also he obviously has not been properly diagnosed, he is so embarrassed and distressed by being asked questions about his problem that he doesn t pursue help from medical people.
Degree understand your concerns went through your description. I suggest you not to worry much. From the given details, it is not possible to diagnose your friends' problem. So many people have peculiar mannerism, mannerisms whicChatDoctores forth only when they forget themselves or concentrating on something. The odd behavior or gesture from your friend could be one such mannerism. To be sure you need to visit a clinical psychologist. If you still require my services on this aspect, you may post a direct query to me on this portal. Please include as many details as possible. I shall provide psychotherapy treatment tailor made for you which should help you good. Hope this answers your query. Available for further clarifications. Good luck.