Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: His interlocutor burst out laughing several times at his answers; and more than ever, when to the question, ‘ whether he had been cured?�
This tweet contains emotions: 
joy, optimism