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: *Still waits for Yang. Guess she really needs her sleep or something. Kittens feeling kinda dejected right now.* #Offline
This tweet contains emotions: 
pessimism, sadness