Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: The moment you bring her to meet your best friend and you're nervous af! 😬😆  #thefriendtest
This tweet contains emotions: 
fear, pessimism