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: Such merriment &amp; laughter from @dadwroteaporno at @KingsPlace &amp; an instructional PowerPoint presentation.Well done to all concerned &amp; thanks
This tweet contains emotions: 
joy, optimism