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: @Johncrookshanks 'Elizabeth Smith!' She said with a cheery smile 'Pleasure to meet you, sir! Where have you travelled from?'
This tweet contains emotions: 
anticipation, joy, optimism, trust