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: Forgot to thank @_JusDee_ and @djolder for sharing @therealpeela's day-making #happy video.
This tweet contains emotions: 
joy, optimism