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: @PeteSpencer007 Are you always so relentlessly positive? Your constantly cheerful optimistic disposition starts to grate after a while.
This tweet contains emotions: 
optimism