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: Morning all! Of course it is sunny on this Monday morning to cheerfully welcome us back to work.:)
This tweet contains emotions: 
joy, optimism