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: Mmmm #coffee and a good #book on a dreary day! Who can beat that?
This tweet contains emotions: 
joy, optimism