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: @GrxjicTank WHY though! Why did u want to offend Americans?
This tweet contains emotions: 
anger, anticipation, disgust, sadness