Task: Analyze the tweet's emotional connotations 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 best portray the tweeter's mental state.
Tweet: It's the #FirstDayofFall and I'm so happy. Sipping my #PumpkinSpice flavored coffee and #smiling! Happy Fall everyone! #amwriting
This tweet contains emotions: 
joy, love, optimism