Analyze the valence intensity of the tweeter's mood conveyed 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". Offer a real-valued score ranging from 0 to 1, where 1 indicates the most positive and 0 indicates the most negative sentiment.