Using 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", identify any emotions from the list: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If none apply, answer "neutral or no emotion".