Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: When you're prof suggest @Pharrell and William James may be unlikely dialogue partners and then plays the #happy video #WeAreCST
This tweet contains emotions: 
joy, optimism