Task: Evaluate the tweet for emotional cues and classify 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 indicate the tweeter's state of mind.
Tweet: @LostGermain ' Want to have a spar?' The prince smiles and reaches for his hilt and his icy eyes keep on Aaron, a playful look in his eyes.
This tweet contains emotions: 
joy