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: Changed my clothes at work and had my pre-workout..  In route to the gym and there is traffic all over - pre workout kicking in..
This tweet contains emotions: 
joy, optimism