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: @CSTrey4 thanks brotein shake 😈😈😈
This tweet contains emotions: 
joy, optimism, sadness