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: Had a conversion with a random fellow passenger on a #melbourne @metrotrains yesterday evening #astounded #youwouldntreadaboutit
This tweet contains emotions: 
anticipation, surprise