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: Yes Mourinho, you really should stop speaking about refs! And try cheering up a bit.
This tweet contains emotions: 
anticipation, disgust, joy, optimism