Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture 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