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: During the day @JeffProbst is jovial. At #TribalCouncil he's a different,  darker fellow.  Still simply but smiles are few. #Survivor
This tweet contains emotions: 
joy, optimism