Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: #Zumba, #PiYo and #HIIT sessions. Sweaty, burning but sooooooo good! #missedoutonsummerbikinibodybutwintersunbodywilldo
This tweet contains emotions: 
joy, optimism