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: @ShieldsCap &lt; Steve between his feet, feeling a blush sting his cheeks. 'I can undress myself, thank you very much,' he snapped &gt;
This tweet contains emotions: 
anger, joy