Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: Indignation: [whispers to date during that terrific Lerman/Letts centerpiece scene] That's his overwhelming sense of indignation.
This tweet contains emotions: 
optimism