Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: The book that can start improving your relationship tonight.  Taking you on a journey of #fun, #laughter, #romance and #metaphysics.  htt…
This tweet contains emotions: 
joy, love, optimism