Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: @TheVulcanSalute , just saw the Save The Day PSA. Why were you in obvious tears doing it? I'd have thought you'd be your cheerful self.
This tweet contains emotions: 
sadness