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: He showed us a really lively performance, with a lot of different emotions, not just sticking to one. And that's freaking awesome.
This tweet contains emotions: 
joy, trust