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: Our tone of voice: we're like One Direction, we're thoughtful and timid, yet playful
This tweet contains emotions: 
joy, optimism