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: Lea doing a mini set tour of glee my heart just cried tears of happiness and sadness
This tweet contains emotions: 
joy, love, optimism, sadness