Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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