We're by the Seine waiting for the fireworks and about to toast Julie. Celine gets the toast going by saying, "Well raise your glasses, shit." And then later she says to the boats, "Y'all need to toot now." Which is why I sort of have a girl crush on her.
Oh, if you get out your opera spectacles, you might be able to see the Eiffel Tower in front of Flore's nose at the very end.