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: You know what's great about #GBBO ? Contestants helping each other, cheering each other on. So important.
This tweet contains emotions: 
joy, love, optimism