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: Biggest joke in life? Kardashian and Jenner stans. Their lives are so dull, parents must be so proud.
This tweet contains emotions: 
optimism