Task: Evaluate the tweet for emotional cues and classify 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 indicate the tweeter's state of mind.
Tweet: @xiankiefer @TheLincoln Book 5! It's so sprightly &amp; fun cuz he'd been reinvigorated by the Harry Potter series. I'm not kidding.
This tweet contains emotions: 
joy, optimism