"Et ca me fait quelque selected" interprets as "and it does a little something to me". "Faire " indicates to help make or do. . Created typically by Piaf, it had been unveiled as a single in 1947 and is without doubt one of the singer’s most popular hits. https://bookmarkbooth.com/story18349629/a-secret-weapon-for-la-vie-en-rose-lyrics-french