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: Smile at people and see what happens.  I think you'll be surprised #smile more #surprisepeople #influenceinternational
This tweet contains emotions: 
anticipation, joy, optimism