Hi I admire you for positive outlook. It is due to social anxiety. Cheeks shivering while conversation is the feature of anxiety. Best way to handle this is exposure therapy. Expose your self as much as possible in that situation and learn the way of handle this. By experience you will learn and be confident. But if you avoid this then your fear and anxiety will increase day by day . So it would better to expose and try to prevent response. After sometime you will himself feel that it is normal conversation and nothing to worry in it. But it takes sometime. Apart from this following will helpful to counter anxiety in daily routines. exercise meditation deep breathing and hyperventilation proper sleep stress free activity do pleasurable activity music and hobbies discuss with friends see all thing with different angle positive outlook confidence I prefer tab etizolam or propranalol in such patient but only medicine will not helpful. you have to do all that i said. In this case both are necessary. Thank you. Get well soon.