Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: The birds chirp , the sun shines and the wind chimes chime. There was once a smile on this face.
This tweet contains emotions: 
joy, optimism