Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @bumbleb33tuna door and cleared his throat, trying to dispel any nervousness he had left.
This tweet contains emotions: 
optimism