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: If someone keeps #laughing at you, don't #fret  . At least u r giving #happiness .'\n#quotes #quotestoliveby
This tweet contains emotions: 
joy, optimism