Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: Our tone of voice: we're like One Direction, we're thoughtful and timid, yet playful
This tweet contains emotions: 
joy, optimism