Determine which emotions are present in the tweet "Idk why but when I help someone,  a smile comes on my lips.\n\n#thatisall #ieverwant #noneeds #justyou #love #peace #smiling #faces #kindness". Choose from anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are evident, state "neutral or no emotion".