Assess the valence intensity of the tweeter's emotional state given 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". Provide a numerical score ranging from 0 to 1, where 1 signifies highly positive and 0 indicates highly negative.