At the very least it gives me confidence to go in with French first!
I'm a lot more confident than my wife (CCB, and she did French immersion) and am speaking French unless the other person offers English and it's a technical thing (for example, car rental, issue with our first hotel booking). She's also been pointing unilingual Francophones to me if she initiated the interaction, and I've been fine.
I get tripped up by some pronunciations. Words like "sucre" or "metre" are not pronounced how I would expect them to be.