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: @doctorofinfo I was just introducing a little levity to the convo. Yep!
This tweet contains emotions: 
anticipation, joy, optimism