I am looking back on a recorded presentation that I did, and realized my facial expression was almost blank throughout the talk. Not once during the whole presentation did I smile. My voice sounded full of enthusiasm despite this. It next dawned on me that not only do I not have any expressive facial gestures during social interactions, but I can't even copy facial gestures when I see someone else do them. It might sound silly, but I really want to spend some serious time in the mirror and practice performing spontaneous facial gestures and strengthen the facial muscles necessary to do this. Does anyone else here have this problem? Are there any techniques for resolving this problem?