When i try to smile my mouth area starts twitching and i was wondering what causes this and how can i make it stop?

Facial dyskinesia: Would wonder if you have ever experienced bell's palsy, as facial synkinesis due to aberrant recovery could be a cause. However, a condition termed hemifacial spasm may be an issue, and facial myokymia is also a possible choice. Doubt you possess a tardive dyskinesia, and you did not mention problems elsewhere in your body, so sounds very localized, find movement disorder neurologist.