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: When I think about Yondu &amp; his crew, Rocket, &amp; Groot doing 700 jumps to Ego planet, I start laughing.
This tweet contains emotions: 
joy, optimism