Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: What if.... the Metro LRT went over the Walterdale?!?! 😂 #yeg #levity
This tweet contains emotions: 
joy, surprise