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: Hello my dear friends, I will be back online this Friday night. I miss you! #sober #sobriety #recovery
This tweet contains emotions: 
joy, optimism, sadness