Task: Evaluate the tweet for emotional cues and classify 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 indicate the tweeter's state of mind.
Tweet: Shantosh: How crazy would it be to walk past and talk to a person everyday never realizing he is suffering from depression or such? …
This tweet contains emotions: 
pessimism, sadness