Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: The moment you bring her to meet your best friend and you're nervous af! 😬😆  #thefriendtest
This tweet contains emotions: 
fear, pessimism