Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: What if.... the Metro LRT went over the Walterdale?!?! 😂 #yeg #levity
This tweet contains emotions: 
joy, surprise