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: @bumbleb33tuna door and cleared his throat, trying to dispel any nervousness he had left.
This tweet contains emotions: 
optimism