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: @yukkikuma_cos cheer up, luv. your face is alot prettier when you're not frowning. &lt;3
This tweet contains emotions: 
joy, love, optimism