I’ve been there a few times over the past decade. It’s a major metro city with substantial tourism. The people there are just like people anywhere else in the world in that if you treat them with respect, they will reflect that; and if you treat them like smug shit, they will also treat you like smug shit.
The semi-popular reputation Paris has is unearned and based in prejudice.
Join Toastmasters and they will (quite kindly) help you rid yourself of this in a few weeks.